$(document).ready(function(){
	var handle = $("body");
	if(handle) {
		/* tworze DIV */
		var div				= document.createElement("div");
		div.id				= "ajaxInProgress";
		div.style.position	= "absolute";
		div.style.display	= "none";
		/* tworze IMG */
		var img 	= document.createElement("img");
		img.src		= siteUrl+"img/loading.gif";
		img.alt		= "Ajax Request in progress";
		img.title	= "Ajax Request in progress";
		/* wstawiam do kodu */
		$(handle).append($(div).append(img));
		/* zdarzenia */
		$("#ajaxInProgress").ajaxStart(function(){
			$("#ajaxInProgress").css("left",document.documentElement.scrollLeft+(document.documentElement.clientWidth)/2).css("top",document.documentElement.scrollTop+(document.documentElement.clientHeight)/2).show();
		});
		$("#ajaxInProgress").ajaxStop(function(){
			$("#ajaxInProgress").hide();
		});
	}
});