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// suite of subroutines to validate dates
/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++) {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag) {
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++) {   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year) {
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}

function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31;
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30;}
		if (i==2) {this[i] = 29;}
   } 
   return this;
}

function isDate(dtStr,type){
	// Declaring valid date character, minimum year and maximum year
	var dtCh= "/";
	var minYear=1900;
	var maxYear=2100;

	var dateType = type + " Date";

	var daysInMonth = DaysArray(12);
	var pos1=dtStr.indexOf(dtCh);
	var pos2=dtStr.indexOf(dtCh,pos1+1);
	var strMonth=dtStr.substring(0,pos1);
	var strDay=dtStr.substring(pos1+1,pos2);
	var strYear=dtStr.substring(pos2+1);
	strYr=strYear;
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1);
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1);
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1);
	}
	month=parseInt(strMonth);
	day=parseInt(strDay);
	year=parseInt(strYr);
	if (pos1==-1 || pos2==-1){
		alert("The " + dateType + " format should be : mm/dd.");
		return false;
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Error with " + dateType + " month value " + month + ". Please enter a valid month.");
		return false;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]) {
		alert("Error with " + dateType + " day value " + day + ". Please enter a valid day.");
		return false;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear) {
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear);
		return false;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert(dateType + " contains unacceptable characters. Please enter a valid date.");
		return false;
	}
	return true;
}
// end of suite of subroutines to validate dates
/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

// all graphics and text query pages using makegraph, 
//  except adult which uses validateAdultYear
function validateYear() {
	// validate output format and number of years selected
	// reject multiple years for fancyReport output due to leap year issues
	var outElement = document.query.outputFormat;
	var o;
	for ( var i = 0; i < outElement.length; i++ ) {
		if ( outElement[i].checked ) {
			 o = outElement[i].value;
		}
	}

	if ( o == "fancyReport" ) {
		var message = "";
		var yearElement;
		var ryearElement;
		if ( document.query.esuYear ) {
			yearElement = document.query.esuYear;
		} else {
			yearElement = document.query.year;
		}
		var yCount = 0;
		for ( var i = 0; i < yearElement.length; i++ ) {
			if ( yearElement[i].selected ) {
				yCount++;
			}
		}

		var rCount = 0;
		if ( document.query.riverYear ) {
			ryearElement = document.query.riverYear;
			for ( var i = 0; i < ryearElement.length; i++ ) {
				if ( ryearElement[i].selected ) {
					rCount++;
				}
			}
		}

		if ( yCount > 1 ) {
			// this option is not allowed because of leap year
			message = message + "Only one (1) selection for " +
			"parameter Year is allowed " +
			"for 'View Data Table (MM/DD)' output format, " +
			"which aligns data by month and day.\n" +
			"Please select a single year from the Year " +
			"parameter menu for this output format.\n" +
			"Multiple year selections are allowed for the " +
			"'View Data Table (DOY)' output format, " +
			"which aligns data by day of year.\n\n";
		}
		if ( rCount > 1 ) {
			// this option is not allowed because of leap year
			message = message + "Only one (1) selection for " +
			"parameter River Year is allowed " +
			"for 'View Data Table (MM/DD)' output format, " +
			"which aligns data by month and day.\n" +
			"Please select a single year from the River Year " +
			"parameter menu for this output format.\n" +
			"Multiple year selections are allowed for the " +
			"'View Data Table (DOY)' output format, " +
			"which aligns data by day of year.\n\n";
		}
		if ( message ) {
			alert("QUERY ALERT\n\n" + message + "After making " +
			"new selections, click 'Begin Run'.");
			return false;
		}
	}
}

// pit_obs_adult_conrate.html
function validateMonth() {
	// validate start month and end month range

	var startElement = document.conrate[8];
	var endElement = document.conrate[9];
	var s,e;
	var extract = /^\d+/;

	for ( var i = 0; i < startElement.length; i++ ) {
		if ( startElement[i].selected ) {
			s = startElement[i].value;
		}
	}
	for ( var i = 0; i < endElement.length; i++ ) {
		if ( endElement[i].selected ) {
			e = endElement[i].value;
		}
	}
	var sNum = Number(s.match(extract));
	var eNum = Number(e.match(extract));

	if ( sNum > eNum ) {
		alert("QUERY ALERT\n\n" + 
		"Selected Start Month is later than selected End Month.\n\n" +
		"Please make new selections for Month Range and " +
		"click 'Begin Run'.");
		return false;
	} else {
		return true;
	}
}

// adult_sum.html
function validateAdMonth() {
	// validate start month and end month range

	var startElement = document.adultmonth[5];
	var endElement = document.adultmonth[6];
	var s,e;
	var extract = /^\d+/;

	for ( var i = 0; i < startElement.length; i++ ) {
		if ( startElement[i].selected ) {
			s = startElement[i].value;
		}
	}
	for ( var i = 0; i < endElement.length; i++ ) {
		if ( endElement[i].selected ) {
			e = endElement[i].value;
		}
	}
	var sNum = Number(s.match(extract));
	var eNum = Number(e.match(extract));

	if ( sNum > eNum ) {
		alert("QUERY ALERT\n\n" + 
		"Selected Start Month is later than selected End Month.\n\n" +
		"Please make new selections for Month Range and " +
		"click 'Begin Run'.");
		return false;
	} else {
		return true;
	}
}

// Validate dates from DART queries
// dart.c dates
// crt/get dates
function ValidateDartDates(){
	var extract = /span$/;

	var sdElement;
	if ( document.query.startdate ) {
		sdElement=document.query.startdate;
	} else if (document.query.DataStartDate ) {
		sdElement=document.query.DataStartDate;
	} else {
		alert("Issue establishing start date.\n");
	}

	var edElement;
	if ( document.query.enddate ) {
		edElement=document.query.enddate;
	} else if (document.query.DataEndDate ) {
		edElement=document.query.DataEndDate;
	} else {
		alert("Issue establishing end date.\n");
	}

	var r;
	var rElement;
	if ( document.query.report ) {
		rElement=document.query.report;
		// report
		for ( var i = 0; i < rElement.length; i++ ) {
			if ( rElement[i].checked ) {
				r = rElement[i].value;
			}
		}
		// if report is null, report is being passed as a hidden input parameter
		if ( r == null ) {
			r = rElement.value;
		}
	}

	var yElement;
	if ( document.query.year ) {
		yElement=document.query.year;
	} else if (document.query.Year ) {
		yElement=document.query.Year;
	} else {
		alert("Issue establishing year.\n");
	}

	var sd = new Array();
	var ed = new Array();

	// split month and day values
	sd = sdElement.value.split("/");
	ed = edElement.value.split("/");

	if ( sd.length > 2 ) {
		alert("The Start Date format should be : mm/dd.");
		return false;
	}
	if ( ed.length > 2 ) {
		alert("The End Date format should be : mm/dd.");
		return false;
	}

	// year
	var y;
	for ( var i = 0; i < yElement.length; i++ ) {
		if ( yElement[i].selected ) {
			y = yElement[i].value;
		}
	}
	// if year is null, year is being passed as a hidden input parameter
	if ( y == null ) {
		y = yElement.value;
	}

	// validate start date and end date values
	// create full date in mm/dd/yyyy format
	var startDate = sdElement.value + "/" + y;
	var endDate = edElement.value + "/" + y;

	// check validity of start date as a date
	if (isDate(startDate,"Start")==false){
		sdElement.focus();
		return false;
	}

	// check validity of end date as a date
	if (isDate(endDate,"End")==false){
		edElement.focus();
		return false;
	}

	// does not validate initial month and day values
	// create dates of start date and end date for
	// comparison to each other and "today"
	var sDate=new Date();
	var smindex = sd[0]-1;
	sDate.setFullYear(y,smindex,sd[1]);

	var eDate=new Date();
	var emindex = ed[0]-1;
	eDate.setFullYear(y,emindex,ed[1]);

	var today = new Date();

	// check if start date is in future
	if ( sDate > today ) {
			alert("No data days possible. Start Date in the future.\n" +
			"Please change your Start Date.\n");
			return false;
	} else if ( sDate < today ) {
			// dates okay, continue
			
	} else {
			alert("No data days possible. Start Date equal to current day.\n" +
			"Please change your Start Date.\n");
			return false;
	}

	// if report, check if span years or within year query type
	// else check startdate before enddate
	if ( r ) {
		var result = r.match(extract);
		if ( result != null ) {
			if ( ed[0] == 2 && ed[1] == 29 ) {
				alert("End Date 2/29 not allowed for Span Calendar Years query.\n" +
				"Please change your End Date to 2/28.\n");
				return false;
			// want to check for sd > ed
			} else if ( sDate > eDate ) {
				// dates good
				return true;
			} else {
				// dates bad
				alert("Longer than one year selected.\n" +
				"Please change your Start Date and/or End Date or\n" +
				"select Within Calendar Year option for Report Year Type.\n");
				return false;
			}
		} else {
			// want to check for sd < ed
			if ( sDate < eDate ) {
				// dates good
				return true;
			} else {
				// dates bad
				alert("End Date occurs before Start Date.\n" +
				"Please change your Start Date and/or End Date.\n");
				return false;
			}
		}
	} else {
		// want to check for sd < ed
		if ( sDate < eDate ) {
			// dates good
			return true;
		} else {
			// dates bad
			alert("End Date occurs before Start Date.\n" +
			"Please change your Start Date and/or End Date.\n");
			return false;
		}
	}
}

// adult_annual.html
function validateAdultRun() {
	// validate project and run selection for Adult Passage annual query page
	// if it passes, call validateDartDates to validate query dates

	var projElement = document.query.proj;
	var runElement = document.query.run;
	var p,r;

	for ( var i = 0; i < projElement.length; i++ ) {
		if ( projElement[i].selected ) {
			p = projElement[i].value;
		}
	}
	for ( var i = 0; i < runElement.length; i++ ) {
		if ( runElement[i].selected ) {
			r = runElement[i].value;
		}
	}

	if ( p == "PRO" ) {
		if ( r.search(/3/) != -1 ) {
			// this option is not allowed because of overwintering
			alert("QUERY ALERT\n\n" + 
			"Run selection Fall is not allowed for project " +
			"Prosser.\n" +
			"Prosser Fall Run dates span 8/16 through 2/28 of "+
			"the following year.\n" +
			"Please use Start Date and End Date to limit your " +
			"query by dates within year.\n\n" + 
			"After making new selections, click 'Begin Run'.");
			return false;
		} else if ( r.search(/2/) != -1 ) {
			// this option is not valid
			alert("QUERY ALERT\n\n" + 
			"Run selection Summer is not valid for " +
			"Prosser.\n" +
			"After making new selections, click 'Begin Run'.");
			return false;
		} else {
			return ValidateDartDates();
		}
	} else if ( p == "ROZ" ) {
		if ( r.search(/3/) != -1 ) {
			// this option is not allowed because of overwintering
			alert("QUERY ALERT\n\n" + 
			"Run selection Fall is not valid for " +
			"Roza.\n" +
			"After making new selections, click 'Begin Run'.");
			return false;
		} else if ( r.search(/2/) != -1 ) {
			// this option is not valid
			alert("QUERY ALERT\n\n" + 
			"Run selection Summer is not valid for " +
			"Roza.\n" +
			"After making new selections, click 'Begin Run'.");
			return false;
		} else {
			return ValidateDartDates();
		}
	} else if  ( p == "WFF" ) {
		if ( r.search(/2/) != -1 ) {
			// this option is not valid
			alert("QUERY ALERT\n\n" + 
			"Run selection Summer is not valid for " +
			"Willamette Fals.\n" +
			"After making new selections, click 'Begin Run'.");
			return false;
		} else {
			return ValidateDartDates();
		}
	} else {
		return ValidateDartDates();
	}
}

// adultpass.html
function validateAdultYear() {
	// validate project and year selection for Adult Passage query pages

	var projElement = document.query.proj;
	var speciesElement = document.query.ftype;
	var yearElement = document.query.year;
	var ayearElement = document.query.avgyear;
	var outElement = document.query.outputFormat;

	var o;
	for ( var i = 0; i < outElement.length; i++ ) {
		if ( outElement[i].checked ) {
			 o = outElement[i].value;
		}
	}

	var s = new Array();
	for ( var i = 0; i < speciesElement.length; i++ ) {
		if ( speciesElement[i].selected ) {
			var j = s.push(speciesElement[i].value);
		}
	}

	var y = new Array();
	var yCount = 0;
	for ( var i = 0; i < yearElement.length; i++ ) {
		if ( yearElement[i].selected ) {
			var j = y.push(yearElement[i].value);
			yCount++;
		}
	}
	var aCount = 0;
	for ( var i = 0; i < ayearElement.length; i++ ) {
		if ( ayearElement[i].selected ) {
			aCount++;
		}
	}

	if ( o == "fancyReport" ) {
		var message = "";
		if ( yCount > 1 ) {
			// this option is not allowed because of leap year
			message = message + "Only one (1) selection for " +
			"parameter Year is allowed " +
			"for 'View Data Table (MM/DD)' output format, " +
			"which aligns data by month and day.\n" +
			"Please select a single year from the Year " +
			"parameter menu for this output format.\n" +
			"Multiple year selections are allowed for the " +
			"'View Data Table (DOY)' output format, " +
			"which aligns data by day of year.\n\n";

		}
		if ( aCount > 1 ) {
			// this option is not allowed because of leap year
			message = message + "Only one (1) 10 Year Avg " +
			"selection is allowed for 'View Data Table " +
			"(MM/DD)' output format, " +
			"which aligns data by month and day.\n" +
			"Please select a single year from the 10 Year Avg " +
			"parameter menu for this output format.\n" +
			"Multiple year selections are allowed for the 'View " +
			"Data Table (DOY)' output format, " +
			"which aligns data by day of year.\n\n";
		}
		if ( message ) {
			alert("QUERY ALERT\n\n" + message + "After making " +
			"new selections, click 'Begin Run'.");
			return false;
		}
	}

	var p = new Array();
	for ( var i = 0; i < projElement.length; i++ ) {
		if ( projElement[i].selected ) {
			var j = p.push(projElement[i].value);
		}
	}

	var warn = "WARNING\n";
	var warnWkFlag = 0;
	var warnFlag = 0;

	// cycle through project array "p" looking for "PRO" or "ROZ" for weekly
	// new check for "RRH" for warning about video loss in 2005
	for ( var i = 0; i < p.length; i++ ) {
		if ( p[i] == "PRO" ) {
			for ( var j = 0; j < y.length; j++ ) {
				if ( (y[j] >= 1983) && (y[j] <= 1991) ) {
					warnWkFlag = 1;
					warnFlag = 1;
					warn = warn + "Daily counts are not available for Prosser Dam data for years 1983-1991.\n" +
						"The Yakama Nation has provided weekly counts with data assigned to an\n" +
						"arbitrary day in the week for which counts are available.\n\n";
					break;
				}
 			}
		} else if ( p[i] == "ROZ" ) {
			for ( var j = 0; j < y.length; j++ ) {
				if ( (y[j] >= 1986) && (y[j] <= 1990) ) {
					warnWkFlag = 1;
					warnFlag = 1;
					warn = warn + "Daily counts are not available for Roza Dam data for years 1986-1990.\n" +
						"The Yakama Nation has provided weekly counts with data assigned to an\n" +
						"arbitrary day in the week for which counts are available.\n\n";
					break;
				}
			}
		} else if ( p[i] == "WEL" ) {
			for ( var j = 0; j < y.length; j++ ) {
				if ( (y[j] >= 2007) && (y[j] <= 2008) ) {
					for ( var k = 0; k < s.length; k++ ) {
						if ( s[k] == "fl" ) {
							warnFlag = 1;
							warn = warn + "Lamprey counts at Wells Dam artificially lowered by tagging\n" +
									"and trapping efforts during 2007-2008.\n\n";
							break;
						}
					}
				}
			}
		} else if ( p[i] == "RRH" ) {
			for ( var j = 0; j < y.length; j++ ) {
				if ( y[j] == 2005 ) {
					warnFlag = 1;
					warn = warn + "Video was lost at Rocky Reach Dam from 1751 hours on 8 June 2005 and was not\n" +
						"returned to operation until 0729 hours on 9 June 2005. As a result, the adult passage\n" +
						"counts at Rocky Reach Dam are incomplete for both days.\n\n";
					break;
				}
			}
		} else if ( p[i] == "ZOS" ) {
			for ( var j = 0; j < y.length; j++ ) {
				if ( y[j] == 2008 ) {
					for ( var k = 0; k < s.length; k++ ) {
						if ( s[k] == "fb" ) {
							warnFlag = 1;
							warn = warn + "Zosel Dam estimated 2008 adult sockeye passage counts missed due to equipment malfunction.\n" +
							"15 May 12:00 - 20 May 12:00 = 0\n" +
							"17 Jul 00:00 - 18 Jul 19:00 = 6678\n" +
							"09 Aug 10:00 - 12 Aug 12:00 = 649\n" +
							"31 Aug 00:00 - 04 Sep 10:00 = 570\n" +
							"Total Missed Sockeye count = 7897\n" +
							"Initial 2008 Sockeye count = 77533\n" +
							"Revised 2008 Sockeye count = 85430\n" +
							"At this time, missed sockeye counts are not reflected in query results.\n\n";
							break;
						}
					}
				} else if ( y[j] == 2010 ) {
					warnFlag = 1;
					warn = warn + "Zosel Dam 2010 data notes.\n" +
					"1. Equipment failure resulted in a loss of data from the right bank ladder (half of the sampling area at Zosel Dam, WA) August 25th through October 31.\n" +
					"2. Linear regression was used to estimate the missed number of sockeye passing through the right bank ladder during the time data were lost (see Miller, BM, JL Panther, and JA Arterburn. 2010. 2010 Annual Report. Confederated Tribes of the Colville Indian Reservation, Omak, WA. located at http://www.cctobmep.com/media/files/2010_OBMEP_Annual_Report.pdf)\n" +
					"3. No steelhead were observed in the left bank ladder during the time of equipment failure; therefore, no estimated number of missed steelhead were generated.  Steelhead do not typically pass Zosel Dam during the time equipment failed.\n" +
					"4. A relatively small number of Chinook were observed during the time of equipment failure, and it was not possible to use linear regression analysis to predict missed numbers of fish. Using the proportion of sockeye passing on the left versus the right bank ladders, potentially 127 Chinook passed the right bank ladder during the time equipment failed. However, there is no certainty associated with this number, therefore this estimate was not included in the total number of Chinook reported for 2010..\n\n";
					break;
				}
			}
		}
	}

	//for ( var k = 0; k < s.length; k++ ) {
	//	if ( s[k] == "flps" ) {
	//		warnFlag = 1;
	//		warn = warn + "Lamprey-LPS is the weekly counts from Bonneville, only, Lamprey Passage Systems (LPS),\n" +
	//			" started in 2010. Lamprey-LPS is not a subset of Lamprey.\n\n";
	//		break;
	//	}
	//}

	if ( warnFlag ) {
		if ( warnWkFlag ) {
			if ( o == "plot" ) {
				warn = warn + "To view the weekly data values for Output Format 'Graph', check\n" +
					"'Graph Nulls' in the Optional section.\n";
			}
		}
		alert(warn);
	}
	return true;
}

// pass.html
function validateSmoltYear() {
	// validate project and year selection for Smolt Index Passage query pages

	var projElement = document.query.proj;
	var yearElement = document.query.year;
	var outElement = document.query.outputFormat;

	var o;
	for ( var i = 0; i < outElement.length; i++ ) {
		if ( outElement[i].checked ) {
			 o = outElement[i].value;
		}
	}

	var p = new Array();
	var y = new Array();
	var yCount = 0;
	for ( var i = 0; i < yearElement.length; i++ ) {
		if ( yearElement[i].selected ) {
			var j = y.push(yearElement[i].value);
			yCount++;
		}
	}

	if ( o == "fancyReport" ) {
		var message = "";
		if ( yCount > 1 ) {
			// this option is not allowed because of leap year
			message = message + "Only one (1) selection for " +
			"parameter Year is allowed " +
			"for 'View Data Table (MM/DD)' output format, " +
			"which aligns data by month and day.\n" +
			"Please select a single year from the Year " +
			"parameter menu for this output format.\n" +
			"Multiple year selections are allowed for the " +
			"'View Data Table (DOY)' output format, " +
			"which aligns data by day of year.\n\n";

		}
		if ( message ) {
			alert("QUERY ALERT\n\n" + message + "After making " +
			"new selections, click 'Begin Run'.");
			return false;
		}
	}

	for ( var i = 0; i < projElement.length; i++ ) {
		if ( projElement[i].selected ) {
			var j = p.push(projElement[i].value);
		}
	}

	var warn = "WARNING\n";
	var warnFlag = 0;

	// cycle through project array "p" looking for "MCN"
	for ( var i = 0; i < p.length; i++ ) {
		if ( p[i] == "MCN" ) {
			for ( var j = 0; j < y.length; j++ ) {
				if ( y[j] >= 2003 ) {
					warnFlag = 1;
					warn = warn + "Since 2003, McNary operations result in sampling every other day during the spring,\n" +
						"approximately April 1 through June 30. \n\n";
					break;
				}
			}
		}
	}

	if ( warnFlag ) {
		if ( o == "plot" ) {
			warn = warn + "To view the data values for Output Format 'Graph', check\n" +
				"'Graph Nulls' in the Optional section.\n";
		}
		alert(warn);
	}
	return true;
}

// used to validate only one release location/basin option
// selected for PIT Tag Release and Observation Summary query
// release basin rkm or release site or release hydrounit
function validatePitSumRelease() {
	// reject multiple selections for category release location/basin
	var count = 0;
	var message = "";
	var rkmElement = document.query.rkm;
	for ( var i = 0; i < rkmElement.length; i++ ) {
		if ( rkmElement[i].selected ) {
			if ( rkmElement[i].value ) {
			 count++;
			}
		}
	}

	var releaseElement = document.query.rel_site;
	for ( var i = 0; i < releaseElement.length; i++ ) {
		if ( releaseElement[i].selected ) {
			if ( releaseElement[i].value ) {
			 count++;
			}
		}
	}

	var hydroElement = "";
	if ( document.query.hydrounit ) {
		hydroElement = document.query.hydrounit;
		for ( var i = 0; i < hydroElement.length; i++ ) {
			if ( hydroElement[i].selected ) {
				if ( hydroElement[i].value ) {
				 count++;
				}
			}
		}
	}

	if ( count > 1 ) {
		if ( document.query.hydrounit ) {
			message = message + "Only one (1) selection for " +
				"'Release Location/Basin' category is allowed. " +
				"You may select from:\n" +
				"Release Basin RKM *OR*\n" +
				"Release Site *OR*\n" +
				"Hydrounit.\n\n";
		} else {
			message = message + "Only one (1) selection for " +
				"'Release Location/Basin' category is allowed. " +
				"You may select from:\n" +
				"Release Basin RKM *OR*\n" +
				"Release Site.\n\n";
		}
	}

	if ( message ) {
			alert("QUERY ALERT\n\n" + message + "After making " +
			"new selections, click 'Begin Run'.");
			return false;
	} else {
		return true;
	}
}

// span year and dates
function formSpanYears() {
	var x;
	var d;
	// form objects
	var yearElement = document.query.year;
	var syElement = document.query.syear;
	var eyElement = document.query.eyear;
	var spanElement = document.query.span;
	var drElement = document.query.drange;
	var yearSel;
	var yearEndSel;

  for ( var i = 0; i < yearElement.options.length; i++ ) {
		if ( yearElement.options[i].selected ) {
			yearSel = yearElement.options[i].value;
		}
	}

	// get value for span radio
	// if yes, then span calendar years and add 1 to end year
	for ( var i = 0; i < drElement.length; i++ ) {
		if ( drElement[i].checked ) {
			d = drElement[i].value;
		}
	}

	// get value for span radio
	// if yes, then span calendar years and add 1 to end year
	for ( var i = 0; i < spanElement.length; i++ ) {
		if ( spanElement[i].checked ) {
			x = spanElement[i].value;
		}
	}

	if ( d == 'yes' && x == 'yes' ) {
		yearEndSel = Number(yearSel) + 1;
	} else {
		yearEndSel = yearSel;
	}

	// populate start year and end year options
	syElement.options[0] = new Option(yearSel,yearSel,true,true);
	eyElement.options[0] = new Option(yearEndSel,yearEndSel,true,true);

}

// Validate dates from DART queries
// dart.c dates
// crt/get dates
function ValidateDartDatesNew(){
	var drangeElement = document.query.drange;
	var d;
	// get value for span radio
	// if yes, then span calendar years and add 1 to end year
	for ( var i = 0; i < spanElement.length; i++ ) {
		if ( drangeElement[i].checked ) {
			d = drangeElement[i].value;
		}
	}

	// if not restricting by date
	// stop validating dates & continue with query
	if ( d == 'no' ) {
		return true;
	}

	var sdElement;
	if ( document.query.startdate ) {
		sdElement=document.query.startdate;
	} else if (document.query.DataStartDate ) {
		sdElement=document.query.DataStartDate;
	} else {
		alert("Issue establishing start date.\n");
	}

	var edElement;
	if ( document.query.enddate ) {
		edElement=document.query.enddate;
	} else if (document.query.DataEndDate ) {
		edElement=document.query.DataEndDate;
	} else {
		alert("Issue establishing end date.\n");
	}

	var r;
	var rElement;
	if ( document.query.report ) {
		rElement=document.query.report;
		// report
		for ( var i = 0; i < rElement.length; i++ ) {
			if ( rElement[i].checked ) {
				r = rElement[i].value;
			}
		}
		// if report is null, report is being passed as a hidden input parameter
		if ( r == null ) {
			r = rElement.value;
		}
	}

	var yElement;
	var y2Element;
	if ( d == 'yes' ) {
		// if restrict by date range, then check for both start & end years
		yElement=document.query.syear;
		y2Element=document.query.eyear;
	} else if ( document.query.year ) {
		yElement=document.query.year;
	} else if (document.query.Year ) {
		yElement=document.query.Year;
	} else {
		alert("Issue establishing year.\n");
	}

	var sd = new Array();
	var ed = new Array();

	// split month and day values
	sd = sdElement.value.split("/");
	ed = edElement.value.split("/");

	if ( sd.length > 2 ) {
		alert("The Start Date format should be : mm/dd.");
		return false;
	}
	if ( ed.length > 2 ) {
		alert("The End Date format should be : mm/dd.");
		return false;
	}

	// year
	var y;
	for ( var i = 0; i < yElement.length; i++ ) {
		if ( yElement[i].selected ) {
			y = yElement[i].value;
		}
	}
	// if year is null, year is being passed as a hidden input parameter
	if ( y == null ) {
		y = yElement.value;
	}
	// validate start date and end date values
	// create full date in mm/dd/yyyy format
	var startDate = sdElement.value + "/" + y;

	if ( d == 'yes' ) {
		// year
		var ey;
		for ( var i = 0; i < y2Element.length; i++ ) {
			if ( y2Element[i].selected ) {
				ey = y2Element[i].value;
			}
		}
		var endDate = edElement.value + "/" + ey;
	} else {
		var endDate = edElement.value + "/" + y;
	}

	// check validity of start date as a date
	if (isDate(startDate,"Start")==false){
		sdElement.focus();
		return false;
	}

	// check validity of end date as a date
	if (isDate(endDate,"End")==false){
		edElement.focus();
		return false;
	}

	// does not validate initial month and day values
	// create dates of start date and end date for
	// comparison to each other and "today"
	var sDate=new Date();
	var smindex = sd[0]-1;
	sDate.setFullYear(y,smindex,sd[1]);

	var eDate=new Date();
	var emindex = ed[0]-1;
	eDate.setFullYear(y,emindex,ed[1]);

	var today = new Date();

	// check if start date is in future
	if ( sDate > today ) {
			alert("No data days possible. Start Date in the future.\n" +
			"Please change your Start Date.\n");
			return false;
	} else if ( sDate < today ) {
			// dates okay, continue
			
	} else {
			alert("No data days possible. Start Date equal to current day.\n" +
			"Please change your Start Date.\n");
			return false;
	}

	// if report, check if span years or within year query type
	// else check startdate before enddate
	// NEED TO REWRITE THIS SECTION
	if ( r ) {
		var result = r.match(extract);
		if ( result != null ) {
			if ( ed[0] == 2 && ed[1] == 29 ) {
				alert("End Date 2/29 not allowed for Span Calendar Years query.\n" +
				"Please change your End Date to 2/28.\n");
				return false;
			// want to check for sd > ed
			} else if ( sDate > eDate ) {
				// dates good
				return true;
			} else {
				// dates bad
				alert("Please change your Start Date and/or End Date.\n");
				return false;
			}
		} else {
			// want to check for sd < ed
			if ( sDate < eDate ) {
				// dates good
				return true;
			} else {
				// dates bad
				alert("End Date occurs before Start Date.\n" +
				"Please change your Start Date and/or End Date.\n");
				return false;
			}
		}
	} else {
		// want to check for sd < ed
		if ( sDate < eDate ) {
			// dates good
			return true;
		} else {
			// dates bad
			alert("End Date occurs before Start Date.\n" +
			"Please change your Start Date and/or End Date.\n");
			return false;
		}
	}
}