function $(element) {
  return document.getElementById(element);
}
function displaySubMenu(li) {
	var subMenu = li.getElementsByTagName("ul")[0];
	subMenu.style.display = "block";
}
function hideSubMenu(li) {
	var subMenu = li.getElementsByTagName("ul")[0];
	subMenu.style.display = "none";
}
function  txt_CanWrite(){
	if($("payOtherUser").checked==true){
	  $("PayUserName1").style.background = "#FFFFFF";
	  $("PayUserName2").style.background = "#FFFFFF";
	  $("PayUserName1").readOnly=false;
	  $("PayUserName2").readOnly=false;
	}
	 else{
	  $("PayUserName1").style.background = "#CCCCCC";
	  $("PayUserName2").style.background = "#CCCCCC";
	  $("PayUserName1").readOnly=true;
	  $("PayUserName2").readOnly=true;
	}
}