var helpWin = null;
function sectionHelp(sid) {
	//make sure the window is closed
	url="section_help.asp?iniframe=Y&section_id="+sid
	if (!helpWin || helpWin.closed) {
		var features = "width=630,height=600,resizable=yes,top=0,left=0,scrollbars=yes";				
		var name="Classes"
		//open the window already
		helpWin = window.open(url, name, features);   
	} else {
		helpWin.document.location = url;
	}
}