function checkValidNumber()
{
	val = event.keyCode;
	if(val<48)
	  event.keyCode=0;
	if(val>57)
	  event.keyCode=0;
	return true;
}

function checknumber(events)
{
    var unicodes=events.charCode? events.charCode :events.keyCode
    if (unicodes!=8){ //if the key isn't the backspace key (which we should allow)
        if(unicodes>47 && unicodes<58)
            return true;
		else
			return false;	 //disable key press
}
}
function checkValidDigit()
{ 	
	val = event.keyCode;
	if(val<48 && val!=46)
	{
	  event.keyCode=0;
	}
	if(val>57)
	{
	  event.keyCode=0;
	}
	return true;
}

function checkValidDigitPlus()
{ 	
	val = event.keyCode;
	if(val<48 && val!=46 && val!=43)
	{
	  event.keyCode=0;
	}
	if(val>57)
	{
	  event.keyCode=0;
	}
	return true;
}

function removespace(event)
{
	val = event.keyCode;
	 var val=event.charCode? event.charCode :event.keyCode;	
  	if(val == "32")
	{
		//event.keyCode=0;
		return false;
	}
	else
	{
		return true;
	}
}



function setSelectList(list_arr,selval)
{
	for(i=0;i<list_arr.length;i++)
	{
		if(list_arr[i].value == selval)
		{
			list_arr[i].selected=true;
			break;
		}
	}
}

function RedirectURL(URL,ExtraParam)
{
	if(!ExtraParam)ExtraParam='';
	window.location=URL+ExtraParam;
	return false;
}

function alpha(value,length)
{
	chk1="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ- ";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}
function alphanum(value,length)
{
	chk1="1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_. ";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}

function alphanum_filename(value,length)
{
	chk1="1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_";
	for(i=0;i<length;i++)
	{
		ch1 = value.charAt(i);
		rtn1 = chk1.indexOf(ch1);
		if(rtn1==-1)
		{
			alert("Special Characters are not allowed in Page Name");
			return false;
		}
	}
	return true;
}

function decimalNumber(value,length){
	chk1="1234567890.";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}
function number(value,length){
	chk1="1234567890-";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}
function onlynumber(value,length){
	chk1="1234567890";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}

function trim_string(s) 
{
	return s.replace(/^\s+/g, '').replace(/\s+$/g, '');
}


function checkValidNull(obj, msg)
{
	if(obj)
	{
		if(Trim(obj.value)=="")
		{
			alert(msg);
			obj.focus();
			return false;
		}
	}
	else
		return false;	
	return true;	
}


function checkValidZero(obj, msg)
{
	if(obj)
	{
		if(Trim(obj.value)=="" || Trim(obj.value)=="0")
		{
			alert(msg);
			obj.focus();
			return false;
		}
	}
	else
		return false;	
	return true;	
}

function checkValidCompare(obj,comparewithvalue,condition, msg)
{
	if(obj)
	{
		val=obj.value;
		flag=false;
		if(condition=='Equal' && val==comparewithvalue)
			flag=true;
		if(condition=='Greater' && val >= comparewithvalue)
			flag=true;
		if(condition=='Less' && val< comparewithvalue)
			flag=true;
		if(condition=='LessEqual' && val<= comparewithvalue)
			flag=true;
		
		if(flag)
		{
			alert(msg);
			obj.focus();
			return false;
		}
		else
			return true;	
	}
	else
		return false;	
}

function checkValidLength(obj,len, msg)
{
	if(obj)
	{
		val=Trim(obj.value);
		if(val=="" || val.length<len )
		{
			alert(msg);
			obj.focus();
			return false;
		}
	}
	else
		return false;	
	return true;	
}

function checkValidFloatNumber(obj, msg)
{
	chk1="1234567890.";
	flag=false;
	if(obj)
	{
		value=obj.value;
		if(Trim(value)!="")
		{
			len=obj.value.length;
			//alert(len);
			for(i=0;i<len;i++)
			{
				ch1=value.charAt(i);
				rtn1=chk1.indexOf(ch1);
				if(rtn1==-1)
					flag=true;
			}
		}else flag=true;
	}else{
		flag=true;
		msg='Object is not Avaible';
	}
	if(flag)
	{
		alert(msg);
		obj.focus();
		return false;
	}
	return true;
}

function checkKeyEventNumber()
{  
	val = event.keyCode;
   	if(val==13)	return true;
	if(val<48)	event.keyCode=0;
	if(val>57)	event.keyCode=0;
	return true;
}
function checkKeyEventFloatNumber()
{  
	
	
	//alert(event+" "+navigator.appName);
	var val;
	if (navigator.appName == "Microsoft Internet Explorer")
      val = window.event.keyCode;
   	else if (navigator.appName == "Navigator")
		val = event.which;
   	else if (navigator.appName == "Mozilla")
       val = event.keyCode;
   	else if (navigator.appName == "Netscape")
       val = event.which;

	//alert(val);
	//val = event.keyCode;
   
	if(val==13)		return true;
	if(val<48 && val!=46 && val!=43 && val!=45)
  		event.keyCode=0;
	if(val>57)
		event.keyCode=0;
	return true;
}

function phoneformate(value,length)
{
	chk1="1234567890()- ";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}

function checkValidPhoneFormate(obj, msg)
{
	chk1="+.1234567890()- ";
	flag=false;
	if(obj)
	{
		value=obj.value;
		if(Trim(value)!="")
		{
			len=obj.value.length;
			for(i=0;i<len;i++)
			{
				ch1=value.charAt(i);
				rtn1=chk1.indexOf(ch1);
				if(rtn1==-1)
					flag=true;
			}
		}
	}else{
		flag=true;
		msg='Object is not Avaible';
	}
	if(flag)
	{
		alert(msg);
		obj.focus();
		return false;
	}
	return true;
}

function getHTTPObject()
{
	// code for Mozilla, etc.
	if (window.XMLHttpRequest)
  	{
  		xmlhttp=new XMLHttpRequest()
  	}
	// code for IE
	else if (window.ActiveXObject)
  	{
  		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
  	}
	return xmlhttp;
}

function setSelectList(list_arr,selval)
{
	for(i=0;i<list_arr.length;i++)
	{
		if(list_arr[i].value == selval)
		{
			list_arr[i].selected=true;
			break;
		}
	}
}

function checkZipCode(events)
{
    var unicodes=events.charCode? events.charCode :events.keyCode
    if (unicodes!=8){ //if the key isn't the backspace key (which we should allow)
        if((unicodes>47 && unicodes<58)||(unicodes>64 && unicodes<91) || (unicodes>96 && unicodes<123))
            return true;
		else
			return false;	 //disable key press
}
}


function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function showSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}

function hideSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
}

function isValidEmail(emailStr) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	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 +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		alert(MSG_CHECKEMAIL);
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	// Start by checking that only basic ASCII characters are in the strings (0-127).
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			alert("Ths username contains invalid characters.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("Ths domain name contains invalid characters.");
			return false;
		}
	}
	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid.");
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Destination IP address is invalid!");
				return false;
	   		}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			alert(MSG_INVALIDDOMAIN);
			return false;
	   }	
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
		domArr[domArr.length-1].search(knownDomsPat)==-1) {
		alert(MSG_VALIDDOMAIN);
		return false;
	}

// Make sure there's a host name preceding the domain.

	if (len<2) {
		alert(MSG_VALIDHOST);
		return false;
	}	
	return true;
}