function SingleSelect(regex,current,formid){
	re = new RegExp(regex);
	for(i = 0; i < document.forms[formid].elements.length; i++) {
		elm = document.forms[formid].elements[i];
		if (elm.type == 'checkbox') {
			if (re.test(elm.name)) {
				elm.checked = false;

			}
		}
	}
	current.checked = true;
}
var state = 'none';
function showhideque(layer_ref) {
	if (state == 'block') {
		state = 'none';
	}else{
		state = 'block';
	}
	if (document.all) { //IS IE 4 or 5 (or 6 beta)
		eval( "document.all." + layer_ref + ".style.display = state");
	}
	if (document.layers) { //IS NETSCAPE 4 or below
		document.layers[layer_ref].display = state;
	}
	if (document.getElementById &&!document.all) {
		hza = document.getElementById(layer_ref);
		hza.style.display = state;
	}
}