function mbout()
{
if (confirm("你确认要安全退出吗?"))
{return true;}
return false;
}
function isreset()
{
if (confirm("你确定要重新设置吗?"))
{return true;}
return false;
}
function isok()
{
if (confirm("你确定要提交表单吗?"))
{return true;}
return false;
}
function isdel()
{
if (confirm("你确定要删除吗?"))
{return true;}
return false;
}
function win(url,win,width,height)
{
window.open(url,win,"width="+width+"px,height="+height+"px,top=0,left=0,toolbar=no,menubar=no,scrollbars=2,resizable=no,location=no, status=no");
}


		function HelloYou(){
		var now = new Date();
		var hour = now.getHours();
		if(hour < 6){document.write("凌晨好!")}
		else if (hour < 9){document.write("早上好!")}
		else if (hour < 12){document.write("上午好!")}
		else if (hour < 14){document.write("中午好!")}
		else if (hour < 17){document.write("下午好!")}
		else if (hour < 19){document.write("傍晚好!")}
		else if (hour < 22){document.write("晚上好!")}
		else {document.write("夜里好!")}
		}

function clearfield(){
		if (document.form1.keywords.value == "输入关键字搜索...")
		document.form1.keywords.value = "";
}