// global functions

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



	function conductSearch()
	{
		document.mainForm.hdnFormState.value = 'search';
		document.mainForm.submit();
	}

	function createCase()
	{

		if(document.mainForm.caseType.value =='') {
			alert('ERROR:\nYou must have a valid CASE TYPE selected before proceeding. The form values will be reset.');
			document.mainForm.reset();
			return;
		}

		if(document.mainForm.caseState.value =='') {
			alert('ERROR:\nYou must have a valid CASE STATE selected before proceeding. The form values will be reset.');
			document.mainForm.reset();
			return;
		}
	
		msg = 'You have requested a new case be created for this category. Is this what you wish to do?'; 
		if (confirm(msg)) {
			document.mainForm.hdnFormState.value = 'create';
			document.mainForm.submit();
		} else {
			return;
		}
	}
	
	function createDocument(typeStart, typeEnd)
	{

		if(document.mainForm.caseType.value =='') {
			alert('ERROR:\nYou must have a valid CASE TYPE selected before proceeding. The form values will be reset.');
			document.mainForm.reset();
			return;
		}

		if(document.mainForm.caseState.value =='') {
			alert('ERROR:\nYou must have a valid CASE STATE selected before proceeding. The form values will be reset.');
			document.mainForm.reset();
			return;
		}

		if(document.mainForm.caseNum.value =='') {
			alert('ERROR:\nYou must enter a CASE NUMBER before proceeding. The form values will be reset.');
			document.mainForm.reset();
			return;
		}

		msg = 'You have requested a new document be added to this case. Is this what you wish to do?'; 
		if (confirm(msg)) {
			document.mainForm.hdnFormState.value = 'create';
			document.mainForm.hdnDocStart.value = typeStart;
			document.mainForm.hdnDocEnd.value = typeEnd;
			document.mainForm.submit();
		} else {
			return;
		}
	}

	function conductNameSearch()
	{
		
		if(document.mainForm.searchLast.value =='') {
			alert('You must enter search criteria before proceeding. Please enter a last name.');
			document.mainForm.searchLast.focus();
			return;
		}
		document.mainForm.hdnFormState.value = 'search';
		document.mainForm.submit();
	}

	function createPerson()
	{
		document.mainForm.hdnFormState.value = 'new';
		document.mainForm.action = "peopleMain.php";		// added form id to facilitate cross section links to people adds (spec, doc:people link)
		document.mainForm.submit();
	}


	function updateForm()
	{	
		// see if there is a "required field check" on this particular tab	 (ck specific tab file for added js code
		var formIsValid;
		if ( window.checkRequired )
		{
			formIsValid = checkRequired();
		}
			
		if(formIsValid != false) {
			document.mainForm.hdnFormState.value = 'update';
			document.mainForm.submit();
		}
	}

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

	function loadDocs(lookupType, lookupState, lookupNum)
	{
		document.mainForm.hdnFormState.value = 'search';
		document.mainForm.caseType.value = lookupType;
		document.mainForm.caseState.value = lookupState;
		document.mainForm.caseNum.value = lookupNum;
		document.mainForm.action = "docMain.php";		// added form id to facilitate cross section links to people adds (spec, doc:people link)
		document.mainForm.submit();
	}


// generic operations 

	function removeItem(whichItem)
	{
		msg = 'You have requested to delete this item. Click OK to proceed. Click CANCEL to leave the item in place?'; 
		if (confirm(msg)) {
			document.mainForm.hdnFormState.value = 'update';
			document.mainForm.hdnRemoveItem.value = whichItem;
			document.mainForm.submit();
		} else {
			return;
		}
	}

	function markRead(whichItem)
	{
		document.mainForm.hdnFormState.value = 'update';
		document.mainForm.hdnMarkRead.value = whichItem;
		document.mainForm.submit();
	}

	function respondToMsg(whichItem)
	{
		document.mainForm.hdnFormState.value = 'update';
		document.mainForm.hdnMsgRespond.value = whichItem;
		document.mainForm.submit();
	}

	function IsNumeric(strString)
	{
		var strValidChars = "0123456789";
		var strChar;
		var blnResult = true;
		if (strString.length > 0)
		{
			for (i = 0; i < strString.length && blnResult == true; i++)
			{
				strChar = strString.charAt(i);
				if (strValidChars.indexOf(strChar) == -1)
				{
					alert('Invalid value entered. Valid values include numbers between 0 and 9999.');
					return false;
				}
			}
		}
	}





/**
 * 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;
	}
}