function nav_popup(URL,WINDOWNAME,WIDTH,HEIGHT,SCROLL) {
	var myWindow = window.open(URL,WINDOWNAME,"toolbar=1,scrollbars=" + SCROLL + ",location=0,statusbar=0,menubar=1,resizable=1,width=" + WIDTH + ",height=" + HEIGHT + ",left = 362,top = 159");
	myWindow.focus();
}

function nav_popup_no_menu(URL,WINDOWNAME,WIDTH,HEIGHT,SCROLL) {
	var myWindow = window.open(URL,WINDOWNAME,"toolbar=0,scrollbars=" + SCROLL + ",location=0,statusbar=0,menubar=0,resizable=1,width=" + WIDTH + ",height=" + HEIGHT + ",left = 362,top = 159");
	myWindow.focus();
}

// this just toggles between a base class and its alternative
function toggleClass(obj, baseClass) {
	if (obj.className == baseClass+"_over")
		obj.className = baseClass;
	else
		obj.className = baseClass+"_over";
}