function getMainContent(page_name, page_title, section)
{

	if (page_title != 'portfolio')
	{
		var page = "pages/"+page_name+".txt";
	}
	else
	{
		var page = "pages/"+page_name+".php";
	}
//	 xmlhttp.open("GET", page,true);
//	 xmlhttp.onreadystatechange=function()
//	 {
//		  if (xmlhttp.readyState==4) {
//		  		document.getElementById("divCenterContent").innerHTML = xmlhttp.responseText;
//		  }
//	 }
//
//	 document.getElementById("divCenterTitle").innerHTML = page_title;
//
//	 xmlhttp.send(null);

	var sPath = window.location.pathname;
	location.href= sPath + "?sec=" + section + "&sub="+page_name;
}