// JavaScript Document

function login_check(frm)
{
	
	/*if(frm.email.value=="" || frm.email.value=="Enter your email Address")
	{
		alert('Please enter your Email-Id!');	
		frm.email.focus();
		return false;
	}*/
	
	/*if(!isEmail(frm.email.value))
	{
	alert('Please enter a valid Email-Id!');	
	frm.email.focus();
	return false;
	}*/
	if(frm.email.value!="")
	{
		
		if(!emailCheck (frm.email.value))
		{
			frm.email.focus();
			return false;
		}
			
		if(frm.password.value=="")
		{
			alert('Please enter your Password!');	
			frm.password.focus();
			return false;
		}
	}
	
	if(frm.email.value=="" || frm.email.value=="Enter your email Address" && frm.password.value=="")
	{	
		if(frm.vemail.value=="" || frm.vemail.value=="Enter your email Address")
		{
			alert('Please enter your Email-Id!');	
			frm.vemail.focus();
			return false;
		}
		else
		{
			if(frm.vemail.value!="")
			{
				if(!emailCheck (frm.vemail.value))
				{
					frm.vemail.focus();
					return false;
				}
			}
			
		}
	}
	if(!frm.agree.checked)
	{
		alert('Please agree to Terms and Conditions!');	
		return false;
	}
	
	return true;
}

function emailCheck (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)");
			return false;
		   }
		  var user=matchArray[1];
		  var domain=matchArray[2];
		  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("The domain name does not seem to be valid.");
		return false;
	   }
	 }
	 if (checkTLD && domArr[domArr.length-1].length!=2 && 
	  domArr[domArr.length-1].search(knownDomsPat)==-1) {
	  alert("The address must end in a well-known domain or two letter " + "country.");
	  return false;
	 }
	if (len<2) {
	  alert("This address is missing a hostname!");
	  return false;
	 }
   return true;
   }