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 clearText(obj){
		   if(obj.value=="请输入关键字"|obj.value=="手机号码")
           obj.value="";
           obj.focus();
}
function resetText(obj,v){
         if(obj.value=="")
         obj.value = v;
}
function searchWords(){
        if(document.getElementById("sortName").value==0){
            alert("请选择分类");
            return ;
        }
        if(document.getElementById("words").value==""){
            alert("请输入要查询的关键字");
            return ;
        }
        document.like.submit();
}