var obj;
var tmpElementId;
function ajax(ajaxUrl, elementId){
	//alert(ajaxUrl);
	tmpElementId = elementId;
	if (window.XMLHttpRequest) {
		// Not IE
		obj = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		try{
			obj = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e){
			try{
				obj = new ActiveXObject("Microsoft.XMLHTTP");						
			}
			catch(e1){
				obj = null;
			}
		}
	}
	
	if(obj!=null){
		//need to keep IE from caching the CT
		obj.onreadystatechange = onResponse;
		obj.open("GET", ajaxUrl,  true);
		//alert(ajaxUrl);
		
		obj.setRequestHeader('If-Modified-Since', 'Wed, 15 Nov 1995 00:00:00 GMT');		
		obj.send(null);
	}
}

function onResponse(){
	var elementId = tmpElementId;
	if(obj.readyState == 4){
		if(obj.status == 200){
			//alert('success');	
			var retval=obj.responseText;
			//alert(retval);
			document.getElementById(elementId).innerHTML = retval;
		}
		else{
			//alert(obj.status);
			//alert(obj.responseText);
		}
	//}else if(obj.readyState == 0){
	//	document.getElementById(elementId).innerHTML = 'Requesting...';
	//}else if(obj.readyState == 1){
	//	document.getElementById(elementId).innerHTML = 'Loading...';
	//}else if(obj.readyState == 2){
	//	document.getElementById(elementId).innerHTML = 'Loaded...';
	//}else if(obj.readyState == 3){
	//	document.getElementById(elementId).innerHTML = 'Ready...';
	}else{
		//document.getElementById(elementId).innerHTML = '<span style="text-align: center;">loading...</span>';
	}
}

function clickButton(e, buttonid){ 
		var bt = document.getElementById(buttonid); 
		if (typeof bt == 'object'){ 
			if(navigator.appName.indexOf("Netscape")>(-1)){ 
				  if (e.keyCode == 13){ 
						bt.click(); 
						return false; 
				  } 
			} 
			if (navigator.appName.indexOf("Microsoft Internet Explorer")>(-1)){ 
				  if (event.keyCode == 13){ 
						bt.click(); 
						return false; 
				  } 
			} 
		} 
	}