var xmlObj;

function getXmlHttpObject()
{
	var objXMLHttp = null;
	if ( window.XMLHttpRequest )
	{
		objXMLHttp = new XMLHttpRequest();
	}
	else if ( window.ActiveXObject )
	{
		objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP" );
	}
	return objXMLHttp;
}

function getContentStudentSearch( node )
{
	xmlObj 		= getXmlHttpObject();
	var contentType = "application/x-www-form-urlencoded; charset=UTF-8";
	var url 	= "ajax/student.search.ajax.php";
	var query	= "free=" + node;	
	
		
	
	xmlObj.onreadystatechange=getContentResponseStudentSearch;
	xmlObj.open("post",url,true);
	xmlObj.setRequestHeader("Content-Type", contentType);
	xmlObj.send(query);
}

function getContentResponseStudentSearch()
{
	if (xmlObj.readyState==2)
	{
		document.getElementById("studentSearchResults").innerHTML='<center><b>Performing Search...</b></center>';
	}
	if (xmlObj.readyState==4 || xmlObj.readyState=="complete")
	{ 
		document.getElementById("studentSearchResults").innerHTML=xmlObj.responseText;
	} 

}