<select name="sqtx" id="sqtx" onChange="tup(this.value)">
<option value="txa">tx1</option>
<option value="txb">tx2</option>
</select>
<script language="javascript">
function tup(obj)
{
document.all['upup'].src="images/"+obj+".gif";
}
</script>
<img id="upup" src="images/tx.gif">
<option value="txa">tx1</option>
<option value="txb">tx2</option>
</select>
<script language="javascript">
function tup(obj)
{
document.all['upup'].src="images/"+obj+".gif";
}
</script>
<img id="upup" src="images/tx.gif">
解决方案 »
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