function ajaxupdatemailing(page_name){	
	var ajaxRequest;  

	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){
				alert("An error occured. Please try later!");
				return false;
			}
		}
	}
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('cur_code1');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}

	var queryString = '&chreq=' + Math.random();

	ajaxRequest.open("GET", page_name + queryString, true);
	ajaxRequest.send(null); 
}