function ajaxFunction(url,function_name) {
	return ajaxFunction(url,function_name,'');
}
function ajaxFunction(url,function_name,params) {
	var ajaxRequest;  // The variable that makes Ajax possible!
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			eval(function_name+'(ajaxRequest.responseText' + (params==''?'':','+params) + ')');
		}
	}
	ajaxRequest.open("GET", url, true);
	ajaxRequest.send(null); 
}
function show_footer(str) {
	str = '<div style="font-family:Arial, Helvetica, sans-serif;font-size:12px;font-weight:normal;direction:rtl;">'+str+'</div>';
	document.getElementById('footer').innerHTML=str;
}
ajaxFunction ('footer_ajax.php','show_footer');