//浏览器最大化
window.self.focus();   
moveTo(0,0);   
window.resizeTo(screen.availWidth,screen.availHeight);

function check(){
	if (document.add.title.value==""){
		alert("请输入留言主题！");
		document.add.title.focus();
		return false;
		}
	if (document.add.user.value==""){
		alert("请输入您的姓名！");
		document.add.user.focus();
		return false;
		}
	if (document.add.tel.value==""){
		alert("请输入您的电话号码！");
		document.add.tel.focus();
		return false;
	}
	if (document.add.tel.value.match(/\D/)){
		alert("电话号码必须为数字!");
		document.add.tel.value="";
		document.add.tel.focus();
		return false;
	}
	if(document.add.qq.value.match(/\D/)){
		alert("您的QQ号码输入有误!");
		document.add.qq.value="";
		document.add.qq.focus();
		return false;
	}
	if (document.add.content.value==""){
		alert("请输入留言内容！");
		document.add.content.focus();
		return false;
		}
	return true;
	}

//下拉菜单相关
var navCurrentId = "";

function viewMenu(id)
{
	var objMenu = document.getElementById("menu" + id);
	objMenu.style.visibility = "visible";
}

function hiddMenu(id)
{
	var objMenu = document.getElementById("menu" + id);
	objMenu.style.visibility = "hidden";

}