function count_total()
{
	browser=navigator.userAgent.toLowerCase();
	
	var area_id=document.getElementById("area").value;
	var total_kg = document.forms[0].kg.options[document.forms[0].kg.selectedIndex].value;
	var doc = document.getElementById("doc").value;

	var xmlhttp=false;
	//create browser specific objects
	document.form1.txt_result.value="";
	
	if(browser.indexOf("msie")!=-1)
	{
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	else
	{
		xmlhttp=new XMLHttpRequest();
	}
	loginurl="count_total.php?area_id="+area_id+"&kg="+total_kg+"&doc="+doc;
	xmlhttp.open("GET",loginurl,false);
	xmlhttp.send(null);
	var result=xmlhttp.responseText;
	if(result!="")
	{
		window.status="";
		//var frm=document.getElementById("frm_total"); 
		array1 = result.split("#");
		var PriceText = "Price : £" + array1[0] + "  Transit time " + array1[1];
		document.form1.txt_result.value=PriceText;
	}
	else
	{
		window.status="";
		alert("Invalid code number");
	}
}