//	global functions
		function basicSearch() {
			document.mainForm.hdnFormState.value = 'search';
			document.mainForm.submit();
		}


		function nextResultSet(gotoPage) {
			document.mainForm.hdnGotoPage.value = gotoPage ;
			document.mainForm.submit();			
		}



	// date check logic via http://www.smartwebby.com/DHTML/date_validation.asp
		//	Declaring valid date character, minimum year and maximum year
			var dtCh= "/";
			var minYear=1900;
			var maxYear=2100;

			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, dtField){
			if(dtStr != '') {
				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("Invalid date input for the " + dtField + ". The date format should be : mm/dd/yyyy");
					return false;
				}
				if (strMonth.length<1 || month<1 || month>12){
					alert("Invalid date input for the " + dtField + ". Please enter a valid month");
					return false;
				}
				if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
					alert("Invalid date input for the " + dtField + ". Please enter a valid day");
					return false;
				}
				if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
					alert("Invalid date input for the " + dtField + ". 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("Invalid date input for the " + dtField + ". Please enter a valid date");
					return false;
				}
			return true;
			}
		}



		function ValidateForm(){
			var dt=document.frmSample.txtDate
			if (isDate(dt.value)==false){
				dt.focus()
				return false
			}
		    return true
		}


		function isYear(yrString, dtField){
			var minYear=1900;
			var maxYear=2100;
			var thisYear=yrString;
			if(thisYear != '') {
				if (thisYear.length != 4 || thisYear<minYear || thisYear>maxYear || isInteger(thisYear)==false){
					alert("Invalid date input for the " + dtField + ". Please enter a valid 4 digit year between "+minYear+" and "+maxYear);
					return false;
				}
			return true;
			}
		}


		function toggleBlock(thisone){
			var ndDiv = document.getElementById(thisone);
			if(ndDiv.className == 'blockHide'){
				ndDiv.className = 'blockShow';
				}
			else{
				ndDiv.className = 'blockHide'
				}
			}