function checkForm(frm) {
	var _frm = frm;
	var infoStr='';
	var isDelete = false;
	var counter = 1;
	var fileNameArr;
		
	var fileName = window.location.href.substring(window.location.href.lastIndexOf("/")+1,window.location.href.length);
	fileNameArr = fileName.split("?");
	fileName = fileNameArr[0];
						
	for(i=0; i<document.forms[0].elements.length; i++)
	{
   //	alert(document.forms[0].elements[i].name);
	
		if(document.forms[0].elements[i].name=='pstrTitle') {
			if (document.forms[0].elements[i].value=='') {
				infoStr +=  "- Indtast en titel.\n";
			}
		}	
		
		if(document.forms[0].elements[i].name=='pintRating') {
			if (document.forms[0].elements[i].value=='') {
				infoStr +=  "- Indtast rating.\n";
			}
			else {
				if (isNaN(document.forms[0].elements[i].value) || document.forms[0].elements[i].value<1 || document.forms[0].elements[i].value>8) {
					infoStr +=  "- Indtast en gyldig rating (1-8).\n";
				}
			}
		}
		
		if(document.forms[0].elements[i].name=='pstrVisited') {
			if (document.forms[0].elements[i].value!='') {
				if(isDate(document.forms[0].elements[i].value)==false)
				{
					return false;
				}
			}
			else {
				infoStr +=  "- Indtast en dato.\n";
			}
		}
			
		if(document.forms[0].elements[i].name=='pstrDescription') {	
			if (document.forms[0].elements[i].value=='') {
				infoStr +=  "- Indtast en beskrivelse.\n";
			}
		}	
		
		if(document.forms[0].elements[i].name.indexOf("pintDelImageId_")==0 && document.forms[0].elements[i].checked && document.getElementById("pintNumImages").value=="1") {
			isDelete = true;
		}
		
		//only for addProject
		if(fileName=='addProject.asp')
		{
			if(document.forms[0].elements[i].name=='pstrThumb') {
				if (document.forms[0].elements[i].value=='') {
					infoStr +=  "- Upload et thumbnail.\n";
				}
			}
				
			if(document.forms[0].elements[i].name=='pstrImageDescription1') {
				if (document.forms[0].elements[i].value=='') {
					infoStr +=  "- Indtast en billedebeskrivelse.\n";
				}
			}
			
			if(document.forms[0].elements[i].name=='pstrImage1') {
				if (document.forms[0].elements[i].value=='') {
					infoStr +=  "- Upload mindst et billede.\n";
				}
			}	
		}
		
		//only for addLink and editLink
		if(fileName=='addLink.asp' || fileName=='editLink.asp')
		{
			if(document.forms[0].elements[i].name=='pstrUrl') {
				if (document.forms[0].elements[i].value=='') {
					infoStr +=  "- Indtast en hjemmesideadresse.\n";
				}
			}
		}
		
		
		//only for editSection
		if(fileName=='editSection.asp')
		{
			if(document.forms[0].elements[i].name=='pstrQuote') {
				if (document.forms[0].elements[i].value=='') {
					infoStr +=  "- Indtast et citat.\n";
				}
			}
			
			if(document.forms[0].elements[i].name=='pstrHeadline') {
				if (document.forms[0].elements[i].value=='') {
					infoStr +=  "- Indtast en overskrift.\n";
				}
			}
		}
		
		
		/*if(fileName=='editProject.asp') {
			var theImage;
			var theImageDescription; 
			if(document.forms[0].elements[i].name.indexOf("pstrImage")==0) {
				theImage = 'pstrImage' + counter;
				if(document.forms[0].elements[i].name==theImage) { 
					//alert(theImage)
					if(document.forms[0].elements[i].value!='') {
						//alert(document.forms[0].elements["pstrImageDescription1"].value);
						if(document.forms[0].elements["pstrImageDescription1"].value=='') {
							infoStr +=  "- Not empty.\n";
						}
					}
				}	
			}
		}*/ 
	
	}
			
	if (infoStr!='') {
		 alert(infoStr);
		 return false;
	}
	else {
		return true;
	}
}

function emailCheck(email) {
  //check to see if @ exist
	if(-1 == email.value.indexOf("@")) { 
   	return false; 
   }
   
	//check for elegal char
	if(-1 != email.value.indexOf(",")) { 
   	return false; 
   }
   
	//check for elegal char
	if(-1 != email.value.indexOf("#")) { 
   	return false; 
   }
  	
	//check for elegal char
	if(-1 != email.value.indexOf("!")) { 
  		return false; 
   }
   
	//check for elegal spaces
	if(-1 != email.value.indexOf(" ")) { 
     return false; 
   }
		 
   //check for a domain name
	if(email.value.length == (email.value.indexOf("@")+1) ) {
		return false;
   }
			
	var mailArr = email.value.split("@");
	//check for a dot in the string after the @
	if (-1 == mailArr[1].indexOf(".")){
		return false;
	}
		
	//check for toplevel domain
	var mailArr2 = mailArr[1].split(".");
	if (mailArr2 != 'undefined') {
		if (mailArr2[mailArr2.length-1].length<2 || mailArr2[mailArr2.length-1].length>3){ 
			return false;
		}
	}
	else {
		return false;
	}	
  return true;
}

/**
 * DHTML date validation script for dd/mm/yyyy. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// 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){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=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("Datoformatet skal være : dd-mm-yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Indtast gyldig måned.")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Indtast gyldig dag.")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Indtast gyldigt år mellem "+minYear+" og "+maxYear+".")
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Indtast gyldig dato.")
		return false
	}
//return true
}

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