//====================================================================================================

//	File Name		:	validate.js

//----------------------------------------------------------------------------------------------------

//	Purpose			:	Client side validation in JavaScript.

//====================================================================================================



var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1;

var ns6=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1;

var ns4=document.layers;

var ffox=!(navigator.userAgent.indexOf("Firefox")==-1);



//====================================================================================================

//	Function Name	:	IsEmpty

//----------------------------------------------------------------------------------------------------

function IsEmpty(fld,msg)

{

	strTemp = trimAll(fld.value);

	if(strTemp.length > 0)

	{

		return true;

	}

	else

	{

		alert(msg);

		try {fld.focus();}catch(e){return true;}

		return false;

	}

}



function trimAll( strValue ) 

{

	var objRegExp = /^(\s*)$/;

	//check for all spaces

	if(objRegExp.test(strValue)) 

	{

		strValue = strValue.replace(objRegExp, '');

		if( strValue.length == 0)

			return strValue;

	}

	//check for leading & trailing spaces

	objRegExp = /^(\s*)([\W\w]*)(\b\s*$)/;

	if(objRegExp.test(strValue)) 

	{

	//remove leading and trailing whitespace characters

		strValue = strValue.replace(objRegExp, '$2');

	}

	return strValue;

}





function IsEmail(fld,msg)

{



	var emailStr = fld.value;



	if (emailStr.toString() == "") 

	{

		alert ("Please Enter Email address");

			fld.focus()

			return false;



	}

	else if (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("Email address seems incorrect (check @ and .'s)");

	fld.focus()

	return false;

	}

	var user=matchArray[1];

	var domain=matchArray[2];

	for (i=0; i<user.length; i++) {

	if (user.charCodeAt(i)>127) {

	alert("Email's username contains invalid characters.");

	fld.focus()

	return false;

	   }

	}

	for (i=0; i<domain.length; i++) {

	if (domain.charCodeAt(i)>127) {

	alert("Email's domain name contains invalid characters.");

	fld.focus()

	return false;

	   }

	}

	if (user.match(userPat)==null) {

	alert("Email's username doesn't seem to be valid.");

	fld.focus()

	return false;

	}

	

	var IPArray=domain.match(ipDomainPat);

	if (IPArray!=null) {

	for (var i=1;i<=4;i++) {

	if (IPArray[i]>255) {

	alert("Email's Destination IP address is invalid!");

	fld.focus()

	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("Email's domain name does not seem to be valid.");

	fld.focus()

	return false;

	   }

	}

	



	if (len<2) {

	alert("Email address is missing a hostname!");

	fld.focus()

	return false;

	}

	//return true;



	}



	return true;

      

}



//====================================================================================================

//	Function Name	:	IsInt

//----------------------------------------------------------------------------------------------------

function IsInt(fld,msg)

{

	var regex = /^[0-9]*$/;

	if(!regex.test(fld.value))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}





//====================================================================================================

//	Function Name	:	IsFloat

//----------------------------------------------------------------------------------------------------

function IsFloat(fld,msg)

{

	var regex = /^[0-9.]*$/;

	if(!regex.test(fld.value))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsValidString

//----------------------------------------------------------------------------------------------------

function IsValidString(fld,msg)

{

	var regex = /^[_]*[a-zA-Z_]+[a-zA-Z0-9_]*$/;

	if(!regex.test(fld.value))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsPassword

//----------------------------------------------------------------------------------------------------

function IsPassword(fld,msg)

{

	var regex = /^[_]*[a-zA-Z]+[0-9]+[a-zA-Z0-9]*$/;

	if(!regex.test(fld.value))

  	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsLen

//----------------------------------------------------------------------------------------------------

function IsLen(fld, minlen, maxlen, msg)

{

	if(fld.value.length < minlen || fld.value.length > maxlen)

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsCurrency

//----------------------------------------------------------------------------------------------------

function IsCurrency(fld,msg)

{

    val = fld.value.replace(/\s/g, "");



	regex = /^\$?\d{1,3}(,?\d{3})*(\.\d{1,2})?$/;



    if(!regex.test(val)) {

         alert(msg);

		 fld.focus();

		 return false;

    }

	return true;

}



//====================================================================================================

//	Function Name	:	IsZip

//----------------------------------------------------------------------------------------------------

function IsZip(fld,msg)

{

	var num = /^[\d]+$/;

	if(!num.test(fld.value) || (fld.value.length !=5 && fld.value.length !=6))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsValidFormat

//----------------------------------------------------------------------------------------------------

function IsValidFormat(fld, filelist, msg)

{

	var regex = new RegExp('(' + filelist.toLowerCase() + ')$');

	if(!regex.test(fld.value.toLowerCase()))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsUrl

//----------------------------------------------------------------------------------------------------

function IsUrl(fld,msg)

{

//	var regex = /^(http:\/\/)/;

	var regex = /^(http:\/\/)/;

	if(!regex.test(fld.value))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}



//====================================================================================================

//	Function Name	:	IsValidSize

//----------------------------------------------------------------------------------------------------

function IsValidSize(fld, msg)

{

	var regex = /^[0-9]*x[0-9]*$/i;

	

	if(!regex.test(fld.value))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}

//====================================================================================================

//	Function Name	:	IsValidSize

//----------------------------------------------------------------------------------------------------

function CheckFileType(fld,msg)

{

	var regex = /(.jpg|.jpeg|.gif|.JPG|.GIF|.JPEG)$/;

	if(!regex.test(fld.value))

	{

		alert(msg);

		fld.focus();

		return false;

	}

	return true;

}

function isNumericKey()

{

	if (window.event.keyCode < 48 || window.event.keyCode > 57)

	{

		window.event.keyCode = 0;

	} 

}