function set(to, pathToRoot) {
	if (to) {
		change(to, pathToRoot);
	} else {
		change('parents', pathToRoot);
	}
}


function change(to, pathToRoot) {
	if (pathToRoot == null || pathToRoot == '') {
		pathToRoot = '../';
	}
	parteach=to;
	if (to=='parents') {
		document.getElementById('parents').className="sidebar";
		document.getElementById('teachers').className="hide";

		document.images['img_parents'].src = pathToRoot + "images/widgets/theme_tab-parentson.gif";
		document.images['img_teachers'].src = pathToRoot + "images/widgets/theme_tab-teachersoff.gif";
		/*var disp=document.getElementById('parents').className;
		window.alert(disp);*/
	} else {
		document.getElementById('teachers').className="sidebar";
		document.getElementById('parents').className="hide";

		document.images['img_teachers'].src = pathToRoot + "images/widgets/theme_tab-teacherson.gif";
		document.images['img_parents'].src = pathToRoot + "images/widgets/theme_tab-parentsoff.gif";
	}
}