var ajax;
function AJAXSTART(){
	
	if(window.ActiveXObject){
		ajax=new ActiveXObject("microsoft.XMLHTTP");
		//alert("hello IE");
	}else{
		ajax=new XMLHttpRequest();
		//alert("hello OTHER");
	}

}

function callAjax(url,k){

	AJAXSTART();

	//alert('callAjax');
	
	ajax.onreadystatechange=function(){
		var result;
		var clssub;			

		if(ajax.readyState==4){
			if(ajax.status==200){

				document.getElementById('rightcontent').innerHTML= ajax.responseText;

			}else{
				document.getElementById('rightcontent').innerHTML="<font face='arial'size='6' color='red'>Can't open file.</font>";
			}
		}
	}

	ajax.open("GET",url,true);
	ajax.send(null);

}