// JavaScript Document
function changeClass(cls) {
	var argLen, intI;
	argLen = arguments.length;
	for(intI = 1; intI < argLen; intI++) {
		document.getElementById(arguments[intI]).className=cls;
	}
}
function changeVisibility(act) {
	var argLen, intI;
	argLen = arguments.length;
	for(intI = 1; intI < argLen; intI++){
		document.getElementById(arguments[intI]).style.visibility=act;
	}
}
