function makeAjaxRequest( url, params, method, sinc, divTarget ) {
		var reqHttpObj = getHTTPObject(); // We create the HTTP Object
		reqHttpObj.open( method, url + params , sinc );
		reqHttpObj.onreadystatechange = function(){
			if (reqHttpObj.readyState == 1){
			}
			if (reqHttpObj.readyState == 4) {
				if( reqHttpObj.status != 200 )
					divTarget.innerHTML = "loading Error.";
				else{
					divTarget.innerHTML = reqHttpObj.responseText;
				}
			}
		}
		reqHttpObj.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		reqHttpObj.send(null);
	}


	function getHTTPObject() {

		var xmlHttp;
		
		try{
 			// Firefox, Opera 8.0+, Safari
 			xmlHttp = new XMLHttpRequest();
		 }
		catch (e){
			 //Internet Explorer
			try{
  				xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
 			}
 			catch (e){
			  xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
			}
 		}
		return xmlHttp;
	}