function check_freight()
{
	if(document.getElementById("veh_make").value == "")
	{
		alert("Please Select Make.");
		document.getElementById("veh_make").focus();
		return false;
	}
	else if(document.getElementById("veh_name").value == "")
	{
		alert("Please Select Name.");	
		document.getElementById("veh_name").focus();		
		return false;		
	}
	else if(document.getElementById("port_from").value == "")
	{
		alert("Please Select Port From.");		
		document.getElementById("port_from").focus();		
		return false;		
	}
	else if(document.getElementById("port_to").value == "")
	{
		alert("Please Select Port To.");			
		document.getElementById("port_to").focus();		
		return false;		
	}
	else
	{
freight_calc(document.getElementById("veh_make").value,document.getElementById("veh_name").value,document.getElementById("port_from").value,document.getElementById("port_to").value);
	return true;

	}

}	

	function freight_calc(make,name,from,to) {
		 if (window.XMLHttpRequest){ // Mozilla, Safari, ... 
			 http_request = new XMLHttpRequest();
		 }else if (window.ActiveXObject){ // IE
			 http_request = new ActiveXObject("Microsoft.XMLHTTP");
		 }// END IF
		
		url = "http://fwt-logi.com/ajax/freight_mini.ajax.php?item=freight&make="+make+"&name="+name+"&from="+from+"&to="+to;
		//window.open(url);
        //exit;
		// REQUESTING DETAIL//		
		 try{
			http_request.open('GET', url,true)
		 } 
		 catch(err){alert(err.toString());}
		 http_request.onreadystatechange = handleResponseFreightMini;     	
		 try{
		   http_request.send(null);		
		 }
		 catch(err){alert(err.toString());}
   }
   
   	function handleResponseFreightMini(){
	
		 	if(http_request.readyState != 4)
			{
				document.getElementById('working').innerHTML = '<img src="http://fwt-logi.com/theme/images/loading.gif" border="0" />';
			}
			
		 if (http_request.readyState == 4){//response received
			var xmldoc = http_request.responseXML;
			var value = parseInt(xmldoc.getElementsByTagName('STATUS')[0].firstChild.data);
			document.getElementById('working').innerHTML = '';
			//alert(value);		  
		  if(value == 0)
		  {
			var devHTML = "<span style='font-family:Verdana, Arial, Helvetica, sans-serif;font-size:12px;color:#990000;'>No Freight Record found for this Vehicle.</span>"
			document.getElementById("msg").innerHTML = devHTML;
		  }
		 else
		 {
			country_from = xmldoc.getElementsByTagName('COUNTRY_FROM')[0].firstChild.data;
			country_to = xmldoc.getElementsByTagName('COUNTRY_TO')[0].firstChild.data;
			port_from = xmldoc.getElementsByTagName('PORT_FROM')[0].firstChild.data;
			port_to = xmldoc.getElementsByTagName('PORT_TO')[0].firstChild.data;
			make = xmldoc.getElementsByTagName('MAKE')[0].firstChild.data;
			name = xmldoc.getElementsByTagName('NAME')[0].firstChild.data;
			freight = xmldoc.getElementsByTagName('FREIGHT')[0].firstChild.data;
			m3 = xmldoc.getElementsByTagName('M3')[0].firstChild.data;
			total_freight = Math.round(parseInt(freight) * parseFloat(m3));
			
			var devHTML = "<span class='txt_11px'>TOTAL FREIGHT : "+m3+" M3 X $"+freight+" = <span style='font-family:Verdana, Arial, Helvetica, sans-serif;font-size:11px;color:#990000;'>$"+total_freight+"</span></span>";
			document.getElementById("msg").innerHTML = devHTML;
		 }//END Outer IF
		}//End Inner IF
		
	}