<script>
<!--
function www_helpor_net(){
var targeturl="http://www.helpor.net"
newwin=window.open("","","scrollbars")
if (document.all){
newwin.moveTo(0,0)
newwin.resizeTo(screen.width,screen.height)
}
newwin.location=targeturl
}
//-->
</script>

返回上一步
<input TYPE="button" VALUE="返回上一步" ONCLICK="history.back(-1)">

刷新按钮一
<input TYPE="button" VALUE="刷新按钮一" ONCLICK="ReloadButton()">
<script language="JavaScript">
<!--
function ReloadButton(){location.href="3.html";}
// -->
</script>

刷新按钮二
<input TYPE="button" VALUE="刷新按钮二" onClick="history.go(0)">

回首页按钮
<input TYPE="button" VALUE="回首页按钮" ONCLICK="HomeButton()">
<script language="JavaScript">
<!--
function HomeButton(){location.href="http://www.helpor.net";}
// -->
</script>

弹出警告框
<input TYPE="button" VALUE="弹出警告框" ONCLICK="AlertButton()">
<script language="JavaScript">
<!--
function AlertButton(){window.alert("今天你喝了没有？:)");}
// -->
</script>

状态栏信息
<input TYPE="button" VALUE="状态栏信息" ONCLICK="StatusButton()">
<script language="JavaScript">
<!--
function StatusButton(){window.status="你好吗？:)";}
// -->
</script>

背景色变换
<input TYPE="button" VALUE="背景色变换" onClick="BgButton()">
<script language="JavaScript">
<!--
function BgButton(){
if (document.bgColor=='#3399ff')
{document.bgColor='#00ccff';}
else{document.bgColor='#3399ff';}
}
// -->
</script>

打开新窗口
<input TYPE="button" VALUE="打开新窗口" ONCLICK="NewWindow()">
<script language="JavaScript">
<!--
function NewWindow(){window.open("http://www.helpor.net","","height=600,width=800,left=10,
top=10,status=no,location=no,toolbar=no, directories=no,menubar=no");}
// -->
</script>