// JavaScript Document

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;					
	}
	
	
	function validate_signfrm()
	{
		var frm	= document.signform;
		var emailID=document.signform.email;
		if ((emailID.value==null)||(emailID.value=="")){
			alert("Please Enter Email ID");
			emailID.focus();
			return false;
		}
		if (echeck(emailID.value)==false){
			emailID.value="";
			emailID.focus();
			return false;
		}
		if(frm.pass.value=="")
		{
			alert("Please enter a password.");
			frm.pass.focus();
			return false;
		}
	}
	
	function validate_regfrm()
	{
		var frm	= document.regform;
		var emailID=document.regform.email;
		if(frm.fname.value=="")
		{
			alert("Please enter your first name.");
			frm.fname.focus();
			return false;
		}
		if(frm.lname.value=="")
		{
			alert("Please enter your last name.");
			frm.lname.focus();
			return false;
		}
		if ((emailID.value==null)||(emailID.value=="")){
			alert("Please Enter Email ID");
			emailID.focus();
			return false;
		}
		if (echeck(emailID.value)==false){
			emailID.value="";
			emailID.focus();
			return false;
		}
		if(frm.password.value=="")
		{
			alert("Please enter a password.");
			frm.password.focus();
			return false;
		}
		if(frm.cnfPassword.value=="")
		{
			alert("Please enter a confirm password.");
			frm.cnfPassword.focus();
			return false;
		}
		if(frm.password.value != frm.cnfPassword.value)
		{
			alert("Password and confirm password should be same.");
			frm.password.value="";
			frm.cnfPassword.value="";
			frm.password.focus();
			return false;
		}
		return true;	
	}
	
	function validate_reqfree()
	{
		var frm	= document.reqfree;
		var emailID=document.reqfree.email;
		if(frm.fname.value=="")
		{
			alert("Please enter your first name.");
			frm.fname.focus();
			return false;
		}
		if(frm.lname.value=="")
		{
			alert("Please enter your last name.");
			frm.lname.focus();
			return false;
		}
		if ((emailID.value==null)||(emailID.value=="")){
			alert("Please Enter Email ID");
			emailID.focus();
			return false;
		}
		if (echeck(emailID.value)==false){
			emailID.value="";
			emailID.focus();
			return false;
		}
		if(frm.message.value=="")
		{
			alert("Please enter your message.");
			frm.message.focus();
			return false;
		}
		return true;	
	}
	
	function validate_login()
	{
		var frm	= document.login;
		var emailID=document.login.email;
		if ((emailID.value==null)||(emailID.value=="")){
			alert("Please Enter Email ID");
			emailID.focus();
			return false;
		}
		if (echeck(emailID.value)==false){
			emailID.value="";
			emailID.focus();
			return false;
		}
		if(frm.password.value=="")
		{
			alert("Please enter your password.");
			frm.password.focus();
			return false;
		}
		return true;
	}
	
	// :::::::::::::: Password Change form validation :::::::::::::::::
			
	function validate_changepass()
		{
		var frm = document.changepass;
		
		if (frm.oldPassword.value == "")
		{
			alert("Please enter old password.");
			frm.oldPassword.focus();
			return false;
		}
		if (frm.newPassword.value == "")
		{
			alert("Please enter new password.");
			frm.newPassword.focus();
			return false;
		}
		if (frm.confirmPassword.value == "")
		{
			alert("Please enter confirm Password.");
			frm.confirmPassword.focus();
			return false;
		}
		if (frm.newPassword.value != frm.confirmPassword.value)
		{
			alert("New password and confirm Password value should be equal.");
			frm.newPassword.value="";
			frm.confirmPassword.value="";
			frm.newPassword.focus();
			return false;
		}
		
		return true;
		
	}
	function frm_submit(id)
	{
		var frm = document.details;
		frm.pid.value = id;
		frm.submit();
	}