var http_request = false;
 var elem="";
 var elemtype="";
		   function makePOSTRequest(url, parameters, el, et) {
		      http_request = false;
		      if (window.XMLHttpRequest) { // Mozilla, Safari,...
		         http_request = new XMLHttpRequest();
		         if (http_request.overrideMimeType) {
		         	// set type accordingly to anticipated content type
		            //http_request.overrideMimeType('text/xml');
		            http_request.overrideMimeType('text/html');
		         }
		      } 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('Cannot create XMLHTTP instance');
		         return false;
		      }
		      
		     elem=el;
		     elemtype=et;
		      
		      http_request.onreadystatechange = alertContents;
		      http_request.open('POST', url, true);
		      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		      http_request.setRequestHeader("Content-length", parameters.length);
		      http_request.setRequestHeader("Connection", "close");
		      http_request.send(parameters);
		   }
		   
		     function alertContents() {
		      if (http_request.readyState == 4) {
		         if (http_request.status == 200) {
		            result = http_request.responseText;
		            if(elemtype=="select") //set a form object * Text box, Select box, Text area, etc... // Result must be in the form of TEXT|VALUE##TEXT|VALUE
		            { 
		            	
		            	tvs=result.split("##");
		            	
		            	elem.options.length=tvs.length;
		            	for(i=0;i<(tvs.length);i++)
		            	{
		            		tv=tvs[i].split("|");
		            		
		            		elem.options[i].text=tv[0];
		            		elem.options[i].value=tv[1];
		            	}
		            }
		            else
		            {
		           		document.getElementById(elem).innerHTML = result;
		            }
		         } else {
		            alert('There was a problem with the request.');
		         } 
		      }
		   }