function $(id) {
	return document.getElementById(id);
}
function changeSelect(v, t){
	var stack = new Array();
	var target = t;
	var source = $("_"+v);
	if (source) {
		var optList = source.getElementsByTagName("option");
		for(var i=0; i<optList.length; i++){
			stack[optList[i].getAttribute("number")] = optList[i].cloneNode(true);
		}
		var all = target.firstChild.cloneNode(true);
		target.innerHTML = "";
		target.appendChild(all);
		var n = 1;
		for (var i=0; i<stack.length; i++){
			if (stack[i]) {
				target.options[n++] = new Option(stack[i].innerHTML, stack[i].value);
			}
		}
	}
}
function showCode(code, target) {
	if ( code == "ALL" ) {
		target.value = "";
	} else {
		target.value = code;
	}
}