var xmlHttp = null;
var opacityControl = 100;

function ajaxLoad(page, params, target){
	try{
		xmlHttp=new XMLHttpRequest();
	}catch (e){
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}catch (e){
			try{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}catch (e){
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	
	xmlHttp.onreadystatechange = function(){
		if(xmlHttp.readyState == 4){
			document.getElementById(target).innerHTML = xmlHttp.responseText;
		}else{
			document.getElementById(target).innerHTML = "<div id='loading_box' style='height: " + defHeight + "px; text-align: center;'><img style='margin: 0px auto; padding-top: " + ((defHeight / 2) - 10) + "px;' src='images/loader.gif' /></div>";
		}
	}
	
	xmlHttp.open("POST",page,true);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", params.length);
	xmlHttp.setRequestHeader("Connection", "close");
	//xmlHttp.overrideMimeType('text/html');
	xmlHttp.send(params);
}