// JavaScript Document
function disable_2_txt(DIV_ID,default_txt,org_txt_color,change_txt_color)
{
	if(get_ID_value(DIV_ID) != "")
	{
		if(document.getElementById(DIV_ID).value == default_txt)
		{
			document.getElementById(DIV_ID).value = "";
			document.getElementById(DIV_ID).style.color = change_txt_color;
		}
		else
		{
			if(document.getElementById(DIV_ID).value == default_txt)
				document.getElementById(DIV_ID).style.color = org_txt_color;
			else
				document.getElementById(DIV_ID).style.color = change_txt_color;
		}
	}
	else
	{
		if(document.getElementById(DIV_ID).value == default_txt || document.getElementById(DIV_ID).value == "")
		{
			document.getElementById(DIV_ID).value = default_txt;
			document.getElementById(DIV_ID).style.color = org_txt_color;
		}
		else
		{
			document.getElementById(DIV_ID).style.color = change_txt_color;
		}
	}	
}

//validate email
function email_check(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 xmlHttpObject()
{
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
    {
        alert ("Browser does not support HTTP Request");
        return;
    }
}


function GetXmlHttpObject(handler)
{
	var xmlHttp=null;
	try
	{
		 // Firefox, Opera 8.0+, Safari
		 xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
	 	//Internet Explorer
	 	try
	  	{
	  		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	  	}
	 	catch (e)
	  	{
	  		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  	}
	}
	
	return xmlHttp;
}

function validate_newsletter()
{
	xmlHttpObject();
	
	var name = document.getElementById("news_name").value
	var email = document.getElementById("news_email").value
	
	
	if(email_check(email))
	{
		var url="PhpRespondAjax/newsletter.php"
		
		url +="?request=newsletter&name="+name+"&email="+email;
		url=url+"&sid="+Math.random();
		xmlHttp.onreadystatechange=set_validate_newsletter;
		xmlHttp.open("GET",url,true) ;
		xmlHttp.send(null);	
	}
	else
	{
		alert("Invalidate Email");
		return false;
	}
}

function set_validate_newsletter()
{
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		document.getElementById("news_name").value ="Name";
		document.getElementById("news_email").value = "Email";
		alert("Thanks for you entry");
	}
}