Stuff

			function filter(u,d)			{				for(i=0;i<u.options.length;i++)				{					uid = u.options[i].value.split(':');					did = d.split(':');										u.options[i].style.display = (uid[1] != did[0] && u.options[i].value) ? 'none' : 'block';					u.selectedIndex = 0;									}			}