// JavaScript Document

function GetXmlHttpObject(){
	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 getZip(zip_code){ 	
	
	var xmlHttp = GetXmlHttpObject();
	if (xmlHttp == null)
	{
		confirm ("Your browser does not support AJAX!");
		return false;
	} 
	var url = "includes/index.php?module=logon&zip_code="+zip_code+"&sid="+Math.random();
	xmlHttp.onreadystatechange = function(){
		if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
			if(xmlHttp.responseText == 'SUCCESS'){
					document.zipFrm.action = "index.php?action=logon";
					document.zipFrm.submit();
					return false;
				}else if(xmlHttp.responseText == 'ERROR') {
					$("#diShowZip").show('blind', 1000);
					document.getElementById('show_mess').innerHTML = '<div id="show_err"> Sorry, we do not offer coverage for your area </div>';
					return false;
				}
		} 		
	};
		
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
}