function SubSelect(master,slave) {
	master.onclick = function() {
		slave.length = 0;
		var values = master.value.split(";");
		for(var i = 0; i < values.length; i += 2) {
			slave[i / 2] = new Option(values[i], values[i + 1]);
		}
	};
}
window.onload = function() {
	var m = document.getElementById("categories");
	var s = document.getElementById("products");
	if(!(m == null || s == null)) {
		SubSelect(m, s);
		var b = document.getElementById("downloadAttach");
		b.onclick = function() {
			if(s.value != "") {
				window.open('/attach' + s.value);
			}
	        };
	}
}