function checkcustomartwork(frm)
{
	var error=false;
    var str="";
	if(frm.first_name.value.length==0)
	{
		str=str+"Please Enter First Name \n";
		error=true;
	}
	if(frm.last_name.value.length==0)
	{
		str=str+"Please Enter Last Name \n";
		error=true;
	}
	if(echeck(frm.email_address.value)!=true)
	{
		str=str+"Please Enter Valid Email Address \n";
		error=true;
	}
	if(CheckPhoneNumber(frm.phone_no.value)!=1)
	{
		str=str+"Please Enter Valid Phone No \n";
		error=true;
	}
	if(error==true)
	 {
	 alert(str);
	 return false;
	 }
	 else
	 {
	 return true;
	 }
}


function CheckPhoneNumber(TheNumber) {
	var valid = 1
	var GoodChars = "0123456789()-+ "
	var i = 0
	if (TheNumber=="") {
		valid = 0
	}
	for (i =0; i <= TheNumber.length -1; i++) {
		if (GoodChars.indexOf(TheNumber.charAt(i)) == -1) {
			valid = 0
		} // End if statement
	} // End for loop
	return valid
}
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		    return "Invalid E-mail ID";
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return "Invalid E-mail ID";
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return "Invalid E-mail ID";
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return "Invalid E-mail ID";
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return "Invalid E-mail ID";
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		   return "Invalid E-mail ID";
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return "Invalid E-mail ID";
		 }

 		 return true					
	}