// JavaScript Document
// JavaScript Document


function validation()
{
	 
 var d=document.form;
 
 
 if(d.FirstName.value =="")
 {
  alert("Please Enter your First Name");
  d.FirstName.focus();
  return false;
 }
 
  
 if(d.LastName.value =="")
 {
  alert("Please Enter your Last Name");
  d.LastName.focus();
  return false;
 }
 
if(d.email.value=='')
	{
	
		alert("Please enter your email");
		d.email.focus();
		return false;
	}
	
	if(checkingEmail(d.email.value)==false)
	   {
		 alert("Invalid Email, Please re-enter");
		 d.email.focus();
		 return false;
	   }
 
   if(d.UserName.value =="")
 {
  alert("Please Enter your Desired Username");
  d.UserName.focus();
  return false;
 }
 
    if(d.Password.value =="")
 {
  alert("Please Enter Password");
  d.Password.focus();
  return false;
 }
 
 if(d.Question.selectedIndex == 0)
	{
	
		alert("Please Select Security Question");
		d.Question.focus();
		return false;
	}
 
   if(d.Answer.value =="")
 {
  alert("Please Enter Security Question Answer");
  d.Answer.focus();
  return false;
 }
 
 return true;
}

function checkingEmail(emailStr){
	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) {
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]
	if (user.match(userPat)==null) {
	    return false
	}
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		  for (var i=1;i<=4;i++) {
		    if (IPArray[i]>255) {
				return false
		    }
	    }
	    return true
	}
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		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>4) {
		return false
	}
	if (len<2) {
	   return false
	}
	return true;
}	
function validatephone(xxxxx) {
	 var maintainplus = '';
 	var numval = xxxxx.value
 	if ( numval.charAt(0)=='+' ){ var maintainplus = '+';}
 	curphonevar = numval.replace(/[\\A-Za-z!"£$%^&*+_={};:'@#~,.¦\/<>?|`¬\]\[]/g,'');
 	xxxxx.value = maintainplus + curphonevar;
 	var maintainplus = '';
 	xxxxx.focus;
}