<select onchange="mm(this)" onfocus="oldIndex=this.selectedIndex">
<option>aaaaaa</option>
<option>bbbbbb</option>
<option>cccccc</option>
</select><SCRIPT LANGUAGE="JavaScript">
var oldIndex;
function mm(e)
{
if (confirm('是否更改'))
oldIndex = e.selectedIndex;
else
e.selectedIndex = oldIndex;
}
</SCRIPT>
<option>aaaaaa</option>
<option>bbbbbb</option>
<option>cccccc</option>
</select><SCRIPT LANGUAGE="JavaScript">
var oldIndex;
function mm(e)
{
if (confirm('是否更改'))
oldIndex = e.selectedIndex;
else
e.selectedIndex = oldIndex;
}
</SCRIPT>
解决方案 »
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