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function cao() {
if(document.all.ddl_class.value=="0")
{
hongtou.style.display="none";
wailai.style.display="none";
wailai1.style.display="none";
}
else if(document.all.ddl_class.value=="1")
{
hongtou.style.display="block";
wailai.style.display="none";
wailai1.style.display="none";
}
else
{
hongtou.style.display="none";
wailai.style.display="block";
wailai1.style.display="block";
}
}
// --></mce:script>
<asp:DropDownList ID="ddl_class" runat="server" onchange="cao()">
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<asp:ListItem Value="1">ºìÍ·Îļþ</asp:ListItem>
<asp:ListItem Value="2">ÍâÀ´Îļþ</asp:ListItem>
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<td>À´ÎÄ£¨µç£©µ¥Î»:</td>
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<script>
function showDaTu(src){
document.getElementById("defaultImg").src=src;
}
</script>
<img src="/jscss/demoimg/wall1.jpg" id="defaultImg">
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<script language = "javascript">

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var start = new Date;
for(var i = 0; i < 1000001; i++){
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