function $(id)
	{
	if(document.getElementById(id))
	 return document.getElementById(id);
	}
	function showChangeCity(){
		$("ChangeCity").style.display= "block";
		
	}
	function hiddenChangeCity() {		
		$("ChangeCity").style.display = "none";		
	}	
    function goChangeCity() {	
		$("ChangeCity").style.display = "none";
		return true;
	}