var xmlhttp = false; 

try { 

xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); 

} catch (e) { 

try { 

xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 

} catch (E) { 

xmlhttp = false; 
} 
} 

if (!xmlhttp && typeof XMLHttpRequest != 'undefined') { 
xmlhttp = new XMLHttpRequest(); 

} 
function makerequest(serverPage, objID) { 
var obj = document.getElementById(objID); 
xmlhttp.open("GET", serverPage); 
xmlhttp.onreadystatechange = function() { 
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { 
obj.innerHTML = '<a href="#" onClick="makerequest (\'main\', \'cont\')"><<< Home</a><br><br><br>';
obj.innerHTML += xmlhttp.responseText; 
} 
} 
xmlhttp.send(null); 
}