<!----
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

/*
function isValidUrl(url)
{
	isValidUrlReturn=false;                                
	if(((url.indexOf("http://")==0 && url.indexOf(".")>1 ) || (url.indexOf("https://")==0 && url.indexOf(".")>1 )) && url.indexOf("..")==-1 && countOccurence(url,'.')>1 ) isValidUrlReturn=true;
	return isValidUrlReturn;
}
*/
/*
function isValidUrl(url)
{
	isValidUrlReturn=0;
	if(((url.indexOf("http://")==0 && url.indexOf(".")>1 ) || (url.indexOf("https://")==0 && url.indexOf(".")>1 )) && url.indexOf("..")==-1 && countOccurence(url,'.')>1 ) isValidUrlReturn=1;
	return isValidUrlReturn;
}
*/

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 date_compare(start_date,end_date)	{
	var stdate=start_date.split("-");
	var enddate=end_date.split("-");
	if(parseInt(stdate[0],10)>parseInt(enddate[0],10)) return false;
	if(parseInt(stdate[0],10)==parseInt(enddate[0],10) && parseInt(stdate[1],10)>parseInt(enddate[1],10)) return false;
	if(parseInt(stdate[0],10)==parseInt(enddate[0],10) && parseInt(stdate[1],10)==parseInt(enddate[1],10) && parseInt(stdate[2],10)>parseInt(enddate[2],10)) return false;
	return true;
}

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 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 date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("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("Please enter a valid date")
		return false
	}
return true
}


// validation for e-mail
function isEmailAddr(email)
{
  var result = false
  var theStr = new String(email)

  if(RemoveLTSpace(theStr).length==0)				//blank will do
	return true;
  if(RemoveLTSpace(theStr).length<6)
	return false;
theStr=RemoveLTSpace(theStr);
	

//Counting .com in the email, if it exists more than one then the email is invalid
	var stringComArray = theStr.split(".com");
	//alert(stringComArray.length);
	if(stringComArray.length >2)
		return false;

  var stringArray = theStr.split("@"); //Splitting it on the criteria of "@"
//  alert(stringArray.length==1);
  if(stringArray.length ==1)
	  return false;
  if(stringArray.length > 2)
  	return false;
  var splitdot=stringArray[1].split(".");//Splitting it on the criteria of "."
//  alert(RemoveLTSpace(splitdot[splitdot.length-1]).length);
  if(RemoveLTSpace(splitdot[splitdot.length-1]).length>3)
   return false;

var sindex=theStr.indexOf(" ");
if(sindex > 0)
	return false;
	//alert(theStr);
  // return false;


  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }  
  return result;
}

// this function used to check valid chars
function check_validchar(pattern,str)
{
  var re = new RegExp(pattern,"g");
  var arr = re.test(str);
   return arr;
}  

// get element value after removing leading and trailing spaces
function RemoveLTSpace(elemval)
{
	var val=elemval.replace(/\s*/,"")
	var val=val.replace(/\s*$/,"")
	return val;
}

function isNumber(fieldValue){
	// To check whether given field does have valid number or not 
	// written by Nilay 
	s = parseInt(fieldValue)
	return !isNaN(s);
}

function validator(formnm){
	formnm=eval(formnm);	
	for(var i=0;i<formnm.elements.length;i++){		// loop through entire element of form
		var junkChars="\\\"<>'~`!#$%^&*/";					//specify junk value
		var fileJunkChars="\\\"<>'~`!@#$%^&*/";
		var nameJunkChars="@1234567890";
		var companyJunkChars="@1234567890";
		var addressJunkChars="";
		var descriptionJunkChars="\\\"<>'~`!@#$%^&*";
		if(formnm.elements[i].alt){					// alt tag has been given
			// START CHECK FOR BLANK
			var altval=formnm.elements[i].alt;
			var altArray=altval.split("~DM~");
			
			for(j=0;j<altArray.length;j++){			//Loop through all parameter deleminited by ~DM~
				altInnerArray=altArray[j].split("~");	// COLLECT SUB PARAMETER DELEMINATED BY ~
				switch(altInnerArray[0]){
					case "NOJUNK" : 				// REQUEST TO CHECK JUNK CHARACTER
							if(junkValue(formnm.elements[i].value, junkChars)){			// Test any character of field value found in Junk Character list
								alert("Please avoid to enter " + junkChars + " in " + altInnerArray[1] + " field.");
								//alert("Please enter a valid " + altInnerArray[1] );
								formnm.elements[i].focus();
								formnm.elements[i].select();
								return false;
							}
							break;
					case "DESCRIPTION" : 				// REQUEST TO CHECK JUNK CHARACTER
							if(junkValue(formnm.elements[i].value, descriptionJunkChars)){			// Test any character of field value found in Junk Character list
								alert("Please avoid to enter " + descriptionJunkChars + " in " + altInnerArray[1] + " field.");
								formnm.elements[i].focus();
								formnm.elements[i].select();
								return false;
							}
							break;
					case "NAME" : 				// REQUEST TO CHECK JUNK CHARACTER
							if(junkValue(formnm.elements[i].value, nameJunkChars)){			// Test any character of field value found in Junk Character list
								alert("Please avoid to enter " + nameJunkChars + " in " + altInnerArray[1] + " field.");
								formnm.elements[i].focus();
								formnm.elements[i].select();
								return false;
							}
							break;
					case "COMPANY" : 				// REQUEST TO CHECK JUNK CHARACTER
							if(junkValue(formnm.elements[i].value, companyJunkChars)){			// Test any character of field value found in Junk Character list
								alert("Please avoid to enter " + companyJunkChars + " in " + altInnerArray[1] + " field.");
								formnm.elements[i].focus();
								formnm.elements[i].select();
								return false;
							}
							break;
					case "ADDRESS" : 				// REQUEST TO CHECK JUNK CHARACTER
							if(junkValue(formnm.elements[i].value, addressJunkChars)){			// Test any character of field value found in Junk Character list
								alert("Please avoid to enter " + addressJunkChars + " in " + altInnerArray[1] + " field.");
								formnm.elements[i].focus();
								formnm.elements[i].select();
								return false;
							}
							break;
					case "VALIDFILE" : 				// REQUEST TO CHECK VALID FLLE NAME
							if(junkValue(getFileName(formnm.elements[i].value), fileJunkChars)){
								alert("File name cannot contain any of these " + fileJunkChars + " characters in" + altInnerArray[1] + " field");
								formnm.elements[i].focus();
								formnm.elements[i].select();
								return false;
							}
							break;
					case "NOBLANK" :
						if(RemoveLTSpace(formnm.elements[i].value)=="")	{
							formnm.elements[i].value=RemoveLTSpace(formnm.elements[i].value);
							alert("Please enter " + altInnerArray[1]);
							formnm.elements[i].focus();
							return false;
						}
						break;
					case "NOBLANKCOMBO" :
						if(RemoveLTSpace(formnm.elements[i].value)=="")	{
							formnm.elements[i].value=RemoveLTSpace(formnm.elements[i].value);
							alert("Please select " + altInnerArray[1]);
							formnm.elements[i].focus();
							return false;
						}
						break;
					case "EMAIL" :
						if(!isEmailAddr(formnm.elements[i].value))	{
							alert("Please enter valid email ");
							formnm.elements[i].select();
							formnm.elements[i].focus();
							return false;
						}
						break;
					case "MAXLENGTH" :
						var len;
						if(altInnerArray[2]){
							len=parseInt(altInnerArray[2]);
							if(formnm.elements[i].value.length > len && len > 0)	{
								alert(altInnerArray[1] + " field exceeded max limit of " + len + " letters.");
								formnm.elements[i].focus();
								return false;
							}
						}
						break;
					case "FMAXLENGTH" :		//check file name does not exceeded max limit 
						if(getFileName(formnm.elements[i].value).length > parseInt(altInnerArray[2]))	{
							alert("File name is too big to be uploaded in " + altInnerArray[1] + " field");
							formnm.elements[i].focus();
							return false;
						}
						break;
					case "DATE" :		//check file name does not exceeded max limit 
						if(!isDate(formnm.elements[i].value))	{
							//alert("Not a valid date in " + altInnerArray[1] + " field");
							formnm.elements[i].focus();
							return false;
						}
						break;
					case "ONLYALPHA" :
						if(!alphaNumeric(formnm.elements[i].value)){
							alert("Please enter only  A - Z, a - z , 0 - 9, _ value in " + altInnerArray[1] + " field");
							formnm.elements[i].focus();
							formnm.elements[i].select();
							return false;
						}
						break;
					
					case "INTEGER" :
						if(!integer(formnm.elements[i].value)){
							alert("Please enter valid integer in " + altInnerArray[1] + " field");
							formnm.elements[i].focus();
							formnm.elements[i].select();
							return false;
						}
						break;
					case "FLOAT" :
						if(!float(formnm.elements[i].value)){
							alert("Please enter valid number in " + altInnerArray[1] + " field");
							formnm.elements[i].focus();
							formnm.elements[i].select();
							return false;
						}
						break;
					case "URL" : 				// REQUEST TO CHECK VALID URL
						/*alert(isValidUrl(formnm.elements[i].value));
							formnm.elements[i].focus();
							formnm.elements[i].select();
						return false;*/
						if(RemoveLTSpace(formnm.elements[i].value).indexOf(" ")>=0)
						{
							alert("Invalid URL");
							formnm.elements[i].focus();
							formnm.elements[i].select();

							return false;
						}
						//alert(RemoveLTSpace(formnm.elements[i].value).indexOf(" "));
						if(!isValidUrl(RemoveLTSpace(formnm.elements[i].value))){
							alert("Invalid URL");
							formnm.elements[i].focus();
							formnm.elements[i].select();
							return false;
						}

						break;
				}
			}
		}
	}
	if(RemoveLTSpace(formnm.CustBillAddr1.value)=="")
	    {
			alert("Please enter Address");
			formnm.CustBillAddr1.focus();
			return false;
		}
	return true;
}

function junkValue(fieldValue, junkChars){
	//return true if any junk character found in given value otherwise false
	if(fieldValue!=""){
		for(i=0;i<junkChars.length;i++)
			if(fieldValue.indexOf(junkChars.charAt(i))!=-1)
				return true;
	}
	return false;
}

function alphaNumeric(str){
	// return false if given string does not follow variable naming scheme
	for (i=0;i<str.length;i++){
		ascCode=str.charCodeAt(i);
	    if(	(ascCode>=65 && ascCode<=90) || 
			(ascCode>=97 && ascCode<=122) || 
			(ascCode>=48 && ascCode<=57) || 
			(ascCode==95)
		  );
		else{
			//alert("alphe numeric returning false");
			return false;
		}
	}
	//alert("alphe numeric returning true");
	return true;
}
			

function integer(fieldValue){
	//return true if given value is integer
	fieldValue=RemoveLTSpace(fieldValue);
	if(fieldValue=="")
		return true;
	junkChar="1234567890";
	for(i=0;i<fieldValue.length;i++)
		if(junkChar.indexOf(fieldValue.charAt(i))==-1)
			return false;
	return true;
}

function float(fieldValue){
	//return true if given value is integer
	fieldValue=RemoveLTSpace(fieldValue);
	if(fieldValue=="")
		return true;
	junkChar="1234567890.";
	for(i=0;i<fieldValue.length;i++)
		if(junkChar.indexOf(fieldValue.charAt(i))==-1)
			return false;
	return true;
}


function getFileName(filePath){
	//return the length of file name from given path
	fPath= new String(filePath);
	fileName= fPath.substring(fPath.lastIndexOf('\\')+1);
	return fileName;
}

function validURL(fieldName){
	//re = /^(file|http):\/\/\S+\/\S+\.(gif|jpg)$/i
	//return re.test(fieldName);
}
function isValidUrl(url)
{
	//return (((url.indexOf("http://")==0 && url.indexOf(".")>1 ) || (url.indexOf("https://")==0 && url.indexOf(".")>1 )) && url.indexOf("..")==-1);
	//return(((url.indexOf("http://")==0 && url.indexOf(".")>1 ) || (url.indexOf("https://")==0 && url.indexOf(".")>1 )) && url.indexOf("..")==-1  && countOccurence(url,'.')>0 ) ;
	return((((url.indexOf("http://")==0 || url.indexOf("www")==0) && url.indexOf(".")>1 ) || (url.indexOf("https://")==0 && url.indexOf(".")>1 )) && url.indexOf("..")==-1  && countOccurence(url,'.')>1 ) ;
}
function countOccurence(txt,chr)
{        
        numOccurence=0;
        for( var i = 0; i < txt.length; ++i )        
        {        
                var c = txt.charAt(i);
                if( c == chr)        ++numOccurence;                
        } 		
        return numOccurence; 
}