// JavaScript Document

function partnerregcheck()
{
  if (partnerreg.firstname.value == "") {
    alert( "Please fill in your first name." );
    partnerreg.firstname.focus();
    return false ;
  }
  if (partnerreg.lastname.value == "") {
    alert( "Please fill in your last name." );
    partnerreg.lastname.focus();
    return false ;
  }
  if (partnerreg.address1.value == "") {
    alert( "Please fill in your address." );
    partnerreg.address1.focus();
    return false ;
  }
  if (partnerreg.city.value == "") {
    alert( "Please fill in your city." );
    partnerreg.city.focus();
    return false ;
  }
var mail=document.partnerreg.mail
  if ((mail.value==null)||(mail.value=="")){
	alert("Please enter your email address.")
	mail.focus()
	return false
  }
  if (echeck(mail.value)==false){
	mail.value=""
	mail.focus()
	return false
  }
  return true ;
}
 
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){
		   alert("Invalid E-mail ID")
		   return false
		}

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

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

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

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

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

 		 return true					
	}