function emailcheck(emailStr) 
{
	var FormData=document.frm
	var dot=0
	var at2=0
	var at
  
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) 
	{
		//alert("Email address seems incorrect (check @ and .'s)")
		alert(validate_alert1);
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]
	if (user.match(userPat)==null) 
	{
    	//alert("The username doesn't seem to be valid.")
    	alert(validate_alert1);
    	return false
	}

	var IPArray=domain.match(ipDomainPat)

	if (IPArray!=null) 
	{
	 	for (var i=1;i<=4;i++) 
	  	{
	    	if (IPArray[i]>255) 
	    	{
	        	//alert("Destination IP address is invalid!")
	    		alert(validate_alert3);
				return false
	    	}
    	}
   		return true
	        }

	var domainArray=domain.match(domainPat)

	if (domainArray==null) 
	{
		//alert("The domain name doesn't seem to be valid.")
		alert(validate_alert4);
		document.frmsubscribe.txtemail.focus();
    	return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length

	/*if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3) 
        {
	    //alert("The address must end in a three-letter domain, or two letter country.")
		alert(validate_alert5);
   		return false
	}*/

	if (len<2) 
	{
   		//var errStr="This address is missing a hostname!"
		var errStr=validate_alert6
   		alert(errStr)
		return false
	}

}
////////////////////////////////////////////////


function trim(TRIM_VALUE){

if(TRIM_VALUE.length < 1){
return"";
}
TRIM_VALUE = RTrim(TRIM_VALUE);
TRIM_VALUE = LTrim(TRIM_VALUE);
if(TRIM_VALUE==""){
return "";
}
else{
return TRIM_VALUE;
}
} //End Function

function RTrim(VALUE){
var w_space = String.fromCharCode(32);
var v_length = VALUE.length;
var strTemp = "";
if(v_length < 0){
return"";
}
var iTemp = v_length -1;

while(iTemp > -1){
if(VALUE.charAt(iTemp) == w_space){
}
else{
strTemp = VALUE.substring(0,iTemp +1);
break;
}
iTemp = iTemp-1;

} //End While
return strTemp;

} //End Function

function LTrim(VALUE){
var w_space = String.fromCharCode(32);
if(v_length < 1){
return"";
}
var v_length = VALUE.length;
var strTemp = "";

var iTemp = 0;

while(iTemp < v_length){
if(VALUE.charAt(iTemp) == w_space){
}
else{
strTemp = VALUE.substring(iTemp,v_length);
break;
}
iTemp = iTemp + 1;
} //End While
return strTemp;
} //End Function

function spcharvalidate( str,allowed )
	{
		str = str.toLowerCase();
		var spChar = '\'\\~`!@#$%^&*+="{[}]:,;<>?|';
		var found = false;
		var i=0;
		while ( (i < str.length) )
		{
			var txt = str.substr(i,1)
			if ( spChar.indexOf(txt) != -1 && allowed.indexOf(txt)==-1 )
			{
				found = true;
				break;
			}
			i++;
		}
		return found;
	}// end of SPChatValidate


function spchemail( str,allowed )
	{
		str = str.toLowerCase();
		var spChar = '\'\\~`!#$%^&*+="{[}]:,;<>?|';
		var found = false;
		var i=0;
		while ( (i < str.length) )
		{
			var txt = str.substr(i,1)
			if ( spChar.indexOf(txt) != -1 && allowed.indexOf(txt)==-1 )
			{
				found = true;
				break;
			}
			i++;
		}
		return found;
	}// end of SPChatValidate

function startchar( str, notallowed)
{
    var txt = str.substr(0,1);
      
     if(notallowed.indexOf(txt)!=-1)
        return true;
     return false;
}// end of startchar
function datecheck(str1,str2,str3)
{
    var arr=new Array(36);
}
function check(str)
{
	if(str.substr(0,7)!="http://")	
	 return false;
	
	return true;
}
function vdate(day,month,year)
{
	var arr1= new Array(31,29,31,30,31,30,31,31,30,31,30,31);
	var arr2= new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	
	if((year % 400)==0 || ((year % 100)!=0 &&(year % 4)==0))
	{
	  if ( arr1[month -1] >= day )
		{
		
		return true;
		}
		return false;
	}
	else
	{
	  if( arr2[month -1] >= day )
	 {
		return true;
	  }
		return false;
	}	
}

function verifyIP (IPvalue)
{
errorString = "";
//theName = "IPaddress";
theName = validate_alert9

var ipPattern = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
var ipArray = IPvalue.match(ipPattern); 

if (IPvalue == "0.0.0.0")
//errorString = errorString + theName + ': '+IPvalue+' +is a special IP address and cannot be used here.';
	errorString = errorString + validate_alert9 + ': '+IPvalue+ " "+ validate_alert5;

else if (IPvalue == "255.255.255.255")
//errorString = errorString + theName + ': '+IPvalue+' is a special IP address and cannot be used here.';
	errorString = errorString + validate_alert9 + ': '+IPvalue+ " "+ validate_alert5;
if (ipArray == null)
//errorString = errorString + theName + ': '+IPvalue+' is not a valid IP address.';
	errorString = errorString + validate_alert9 + ': '+IPvalue+ " "+ validate_alert8;
else {
for (i = 0; i < 4; i++) {
thisSegment = ipArray[i];
if (thisSegment > 255) {
//errorString = errorString + theName + ': '+IPvalue+' is not a valid IP address.';
	errorString = errorString + validate_alert9 + ': '+IPvalue+ " "+ validate_alert8;
	i = 4;
}
if ((i == 0) && (thisSegment > 255)) {
//errorString = errorString + theName + ': '+IPvalue+' is a special IP address and cannot be used here.';
	errorString = errorString + validate_alert9 + ': '+IPvalue+ " "+ validate_alert7;
i = 4;
      }
   }
}
extensionLength = 3;
if (errorString == "")
return false;
else
alert (errorString);
return true;
}
//////////////////////////////////////////////////////////////
function checkXSS(v){
	var regex=/<script>(.*?)<\/script>/i;
	var regex1=/javascript:/i;
	var regex2=/vbscript:/i;
	var regex3=/src[\r\n]*=[\r\n]*\'[\s\S]*\'/im;
	var regex4=/src[\r\n]*=[\r\n]*\"[\s\S]*\"/im;
	var regex5=/src[\r\n]*=[\r\n]*[\s\S]*/im;
	var regex6=/<\/script>/i;
	var regex7=/<script[\s\S]*>/im;
	var regex8=/eval([\s\S]*)/im;
	var regex9=/expression([\s\S]*)/im;
		
	var regex10=/<[^\w<>]*(?:[^<>"'\s]*:)?[^\w<>]*(?:\W*s\W*c\W*r\W*i\W*p\W*t|\W*f\W*o\W*r\W*m|\W*s\W*t\W*y\W*l\W*e|\W*s\W*v\W*g|\W*m\W*a\W*r\W*q\W*u\W*e\W*e|(?:\W*l\W*i\W*n\W*k|\W*o\W*b\W*j\W*e\W*c\W*t|\W*e\W*m\W*b\W*e\W*d|\W*a\W*p\W*p\W*l\W*e\W*t|\W*p\W*a\W*r\W*a\W*m|\W*i?\W*f\W*r\W*a\W*m\W*e|\W*b\W*a\W*s\W*e|\W*b\W*o\W*d\W*y|\W*m\W*e\W*t\W*a|\W*i\W*m\W*a?\W*g\W*e?|\W*v\W*i\W*d\W*e\W*o|\W*a\W*u\W*d\W*i\W*o|\W*b\W*i\W*n\W*d\W*i\W*n\W*g\W*s|\W*s\W*e\W*t|\W*i\W*s\W*i\W*n\W*d\W*e\W*x|\W*a\W*n\W*i\W*m\W*a\W*t\W*e)[^>\w])|(?:<\w[\s\S]*[\s\0\/]|['"])(?:formaction|style|background|src|lowsrc|ping|on(?:d(?:e(?:vice(?:(?:orienta|mo)tion|proximity|found|light)|livery(?:success|error)|activate)|r(?:ag(?:e(?:n(?:ter|d)|xit)|(?:gestur|leav)e|start|drop|over)?|op)|i(?:s(?:c(?:hargingtimechange|onnect(?:ing|ed))|abled)|aling)|ata(?:setc(?:omplete|hanged)|(?:availabl|chang)e|error)|urationchange|ownloading|blclick)|Moz(?:M(?:agnifyGesture(?:Update|Start)?|ouse(?:PixelScroll|Hittest))|S(?:wipeGesture(?:Update|Start|End)?|crolledAreaChanged)|(?:(?:Press)?TapGestur|BeforeResiz)e|EdgeUI(?:C(?:omplet|ancel)|Start)ed|RotateGesture(?:Update|Start)?|A(?:udioAvailable|fterPaint))|c(?:o(?:m(?:p(?:osition(?:update|start|end)|lete)|mand(?:update)?)|n(?:t(?:rolselect|extmenu)|nect(?:ing|ed))|py)|a(?:(?:llschang|ch)ed|nplay(?:through)?|rdstatechange)|h(?:(?:arging(?:time)?ch)?ange|ecking)|(?:fstate|ell)change|u(?:echange|t)|l(?:ick|ose))|m(?:o(?:z(?:pointerlock(?:change|error)|(?:orientation|time)change|fullscreen(?:change|error)|network(?:down|up)load)|use(?:(?:lea|mo)ve|o(?:ver|ut)|enter|wheel|down|up)|ve(?:start|end)?)|essage|ark)|s(?:t(?:a(?:t(?:uschanged|echange)|lled|rt)|k(?:sessione|comma)nd|op)|e(?:ek(?:complete|ing|ed)|(?:lec(?:tstar)?)?t|n(?:ding|t))|u(?:ccess|spend|bmit)|peech(?:start|end)|ound(?:start|end)|croll|how)|b(?:e(?:for(?:e(?:(?:scriptexecu|activa)te|u(?:nload|pdate)|p(?:aste|rint)|c(?:opy|ut)|editfocus)|deactivate)|gin(?:Event)?)|oun(?:dary|ce)|l(?:ocked|ur)|roadcast|usy)|a(?:n(?:imation(?:iteration|start|end)|tennastatechange)|fter(?:(?:scriptexecu|upda)te|print)|udio(?:process|start|end)|d(?:apteradded|dtrack)|ctivate|lerting|bort)|DOM(?:Node(?:Inserted(?:IntoDocument)?|Removed(?:FromDocument)?)|(?:CharacterData|Subtree)Modified|A(?:ttrModified|ctivate)|Focus(?:Out|In)|MouseScroll)|r(?:e(?:s(?:u(?:m(?:ing|e)|lt)|ize|et)|adystatechange|pea(?:tEven)?t|movetrack|trieving|ceived)|ow(?:s(?:inserted|delete)|e(?:nter|xit))|atechange)|p(?:op(?:up(?:hid(?:den|ing)|show(?:ing|n))|state)|a(?:ge(?:hide|show)|(?:st|us)e|int)|ro(?:pertychange|gress)|lay(?:ing)?)|t(?:ouch(?:(?:lea|mo)ve|en(?:ter|d)|cancel|start)|ime(?:update|out)|ransitionend|ext)|u(?:s(?:erproximity|sdreceived)|p(?:gradeneeded|dateready)|n(?:derflow|load))|f(?:o(?:rm(?:change|input)|cus(?:out|in)?)|i(?:lterchange|nish)|ailed)|l(?:o(?:ad(?:e(?:d(?:meta)?data|nd)|start)?|secapture)|evelchange|y)|g(?:amepad(?:(?:dis)?connected|button(?:down|up)|axismove)|et)|e(?:n(?:d(?:Event|ed)?|abled|ter)|rror(?:update)?|mptied|xit)|i(?:cc(?:cardlockerror|infochange)|n(?:coming|valid|put))|o(?:(?:(?:ff|n)lin|bsolet)e|verflow(?:changed)?|pen)|SVG(?:(?:Unl|L)oad|Resize|Scroll|Abort|Error|Zoom)|h(?:e(?:adphoneschange|l[dp])|ashchange|olding)|v(?:o(?:lum|ic)e|ersion)change|w(?:a(?:it|rn)ing|heel)|key(?:press|down|up)|(?:AppComman|Loa)d|no(?:update|match)|Request|zoom))[\s\0]*=/img;
	//var regex11=/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[\^'">\s]+))?)+\s*|\s*)\/?>?/im;
	var regex11= /[<]{1}\s*[/]?\s*(!--|!DOCTYPE|a|abbr|acronym|address|applet|area|article|aside|audio|b|base|basefont|bdi|bdo|big|blockquote|body|br|button|canvas|caption|center|cite|code|col|colgroup|data|datalist|dd|del|details|dfn|dialog|dir|div|dl|dt|em|embed|fieldset|figcaption|figure|font|footer|form|frame|frameset|h1|h2|h3|h4|h5|h6|head|header|hr|html|i|iframe|img|input|ins|kbd|label|legend|li|link|main|map|mark|meta|meter|nav|noframes|noscript|object|ol|optgroup|option|output|p|param|picture|pre|progress|q|rp|rt|ruby|s|samp|script|section|select|small|source|span|strike|strong|style|sub|summary|sup|svg|table|tbody|td|template|textarea|tfoot|th|thead|time|title|tr|track|tt|u|ul|var|video|wbr)+\b((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>?/im;
	var res=false;
	if(regex.test(v)){
		res=true;
	}else if(regex1.test(v)){
		res=true;
	}else if(regex2.test(v)){
		res=true;
	}else if(regex3.test(v)){
		res=true;
	}else if(regex4.test(v)){
		res=true;
	}else if(regex5.test(v)){
		res=true;
	}else if(regex6.test(v)){
		res=true;
	}else if(regex7.test(v)){
		res=true;
	}else if(regex8.test(v)){
		res=true;
	}else if(regex9.test(v)){
		res=true;
	}else if(regex10.test(v)){
		res=true;
	}else if(regex11.test(v)){
		res=true;
	}
	
	return res;
}
function sanitizeHTML(str) {
	var temp = document.createElement('div');
	temp.textContent = str;
	return temp.innerHTML;
}