function popup(elemID,elemClass) {
	document.getElementById(elemID).className += elemClass;
}
function popdown1(elemID,elemClass) {
	document.getElementById(elemID).className = document.getElementById(elemID).className.replace(elemClass, "");
}
function popdown(elemID,elemClass) {
	setTimeout("popdown1('"+elemID+"','"+elemClass+"')",100);
}
function show(elemID,elemClass) {
	if (document.getElementById(elemID).className=="") popup(elemID,elemClass); 
	else popdown(elemID,elemClass);
}