function activateShadows(shadowClassId)
{
	$('.' + shadowClassId + '').before('<div class=\"shadow skipZ\"><div class=\"tl\">&nbsp;</div><div class=\"br\">&nbsp;</div><div class=\"bl\">&nbsp;</div><div class=\"tr\">&nbsp;</div></div>');
	$('.shadow div').width($('.' + shadowClassId + '').outerWidth()).height($('.' + shadowClassId + '').outerHeight()); //FIX:set width and height according to element inside 
}