function check(val)
{
	var message;
	var error=0;
	message='';
	if(val.username.value=='')
	{
		if(error==0)
		val.username.focus();
		message=message+"Please enter username.\n";
		error=1;
	}
 	if(val.password.value=='')
	{
		if(error==0)
		val.password.focus();
		message=message+"Please enter password.\n";
		error=1;
	}
	if(error==1)
	{
		alert(message);
		return false;
	}
	else
	{
		return true;
	}
}
function checknew(val)
{
	//alert(val.email.value);
	if(val.email.value=='')
	{
		alert('Please Enter E-mail Address.');
		val.email.focus();
	    return false;
	}
	if(val.email.value!='')
	{
		emailExp= /^\w+(\-\w+)*(\.\w+(\-\w+)*)*@\w+(\-\w+)*(\.\w+(\-\w+)*)+$/;
	 	 if (!(emailExp.test(val.email.value)))
		 {
		 	alert('Please Enter Valid E-mail Address.');
			val.email.focus();
			return false;
			
		 }
 	}
 
	else
		return true;
}