function DisplayList(obj)
{
	
	
	var pnlCityList= document.getElementById(obj)
    if (pnlCityList.style.display == "block")
	{
		pnlCityList.style.display="none"
	}
	else
	{
		pnlCityList.style.display="block"
	} 
    
    return false
}