function classover(obj)
{
	var curclass=obj.className;
	
	if(curclass.search(/act/)==-1)
	{
		obj.className=curclass+"act";
	}
}
function classout(obj)
{
	var curclass=obj.className;
	if(curclass.search(/act/)!=-1)
	{
		obj.className=curclass.replace(/act/,"");
	}
}