function setMinHeight() {
	var mainContent = document.getElementById('content_main');
	var contentOuterWin = document.getElementById('content');
	var contentRight = document.getElementById('content_right');
	
	if ( mainContent.offsetHeight > contentOuterWin.offsetHeight ) {
		var heightDiff = mainContent.offsetHeight - contentOuterWin.offsetHeight;		
		contentOuterWin.style.minHeight  = contentOuterWin.offsetHeight + heightDiff + "px";		
	}	
}

function getXMLHTTP() { //fuction to return the xml http object
	var xmlhttp=false;
	try{
		xmlhttp=new XMLHttpRequest();
	}
	catch(e)	{
		try{
			xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(e){
			try{
			xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
			}
			catch(e1){
				xmlhttp=false;
			}
		}
	}

	return xmlhttp;
 }
function loadProgram(subjectname) {	

	var strURL="/loadprogram.php?subject="+subjectname;
	var req = getXMLHTTP();
	req.open("GET", strURL, true);
	req.send(null);
	if (req) {
		req.onreadystatechange = function() {
			if (req.readyState == 4) {
				// only if "OK"
				if (req.status == 200) {
				//alert(req.responseText);							
					document.getElementById('programdropdown').innerHTML=req.responseText;
				} else {
					alert("There was a problem while using XMLHTTP:\n" + req.statusText);
				}
			}
		}		
	}
}