function checkform() {
	if(document.searchForm.txtSearch.value == "")
	{
		alert("ÇëÊäÈëËÑË÷¹Ø¼ü×Ö£¡£¡");
		return false;
	}
	return true;
}

function  sumitfunction() {
  if(checkform())
    document.searchForm.submit();
}

function displaySubMenu(li) {
  var subMenu = li.getElementsByTagName("ul")[0];
  if (subMenu) {
    subMenu.style.display = "block";
  }
}
function hideSubMenu(li) {
  var subMenu = li.getElementsByTagName("ul")[0];
  if (subMenu) {
    subMenu.style.display = "none";
  }
}