function makeHttpRequest(url, callback_function, inp_id,return_xml)
{
   var http_request = false;  
   
   if (window.XMLHttpRequest) { // Mozilla, Safari,...
       http_request = new XMLHttpRequest();
       if (http_request.overrideMimeType) {
           http_request.overrideMimeType('text/xml');
       }
   } else if (window.ActiveXObject) { // IE
       try {
           http_request = new ActiveXObject("Msxml2.XMLHTTP");
       } catch (e) {
           try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
           } catch (e) {}
       }
   }

   if (!http_request) {
       alert('Unfortunatelly you browser doesn\'t support this feature.');
       return false;
   }
   http_request.onreadystatechange = function() {
       if (http_request.readyState == 4){
       	 if(http_request.status == 200) {       	
                   eval(callback_function + '(http_request.responseText,inp_id)');
           } else {
               alert('There was a problem with the request.(Code: ' + http_request.status + ')');
           }
       }
       
   }
   http_request.open('GET', url, true);
   http_request.send(null);      
}


function writeOutput(text,div_id){
	var obj=getObject(div_id);
	obj.style.display='block';
	obj.innerHTML=text;		  	  
}

function getObject(name) {
   var ns4 = (document.layers) ? true : false;
   var w3c = (document.getElementById) ? true : false;
   var ie4 = (document.all) ? true : false;

   if (ns4) return eval('document.' + name);
   if (w3c) return document.getElementById(name);
   if (ie4) return eval('document.all.' + name);
   return false;
}


function showLoadingGif(id){    
	getObject('id').innerHTML='<img src="/images/ajax-loader.gif" alt="loading"/>';
   }