function handleHttpResponse(link) {
    
    if (http.readyState == 4) {
        if (http.status == 200) {
            //alert("handleHTTPResponse");            
        
            // Split the comma delimited response into an array.

            //For plain text response (not XML formatted),
            //results = http.responseText.split(",");                    
                    
            // Or for XML formatted response text:
         
            
            if(link == "drivingdirections"){
            	

	            var message = http.responseXML.getElementsByTagName("message")[0];
				
				if(message != undefined){
	            
		            results = message.childNodes[0].nodeValue.split(",");
		            document.getElementById('divDrivingMapImage').style.display = "block";
		            var mapimg = document.createElement('img');
		            mapimg.setAttribute('src', results[0]);
	  	            mapimg.setAttribute('id', 'mapgif');
		            document.getElementById('divDrivingMapImage').appendChild(mapimg);
		         }
		         		        
	            
	        }
	          
	            
	        

       }    
      
       
    }
    return true;    
}

function getHTTPObject() {
	
	var xmlhttp;

	if (window.XMLHttpRequest) {
	     xmlhttp = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
	     xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	}	 

	return xmlhttp;
}