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<select multiple name="left" id="left" size="8" style='width:200;'
ondblclick="moveOption(document.getElementById('left'), document.getElementById('right'))">
<option value="20">ASP</option>
<option value="30">PHP</option>
<option value="40">ASP.NET</option>
<option value="50">JSP</option>
<option value="60">VB</option>
<option value="70">DELPHI</option>
<option value="80">AJAX</option>
<option value="90">JQUERY</option>
</select>
<input type="button" value=" >> " onclick="moveOption(document.getElementById('left'),document.getElementById('right'))">
<select multiple name="right" id="right" size="8" style='width:200;'
ondblclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
<option value="33">ertevv</option>
<option value="11">aerwrew</option>
<option value="22">JQUddddERY</option>
</select>
<SCRIPT LANGUAGE="JavaScript">
//移动
function moveOption(obj1, obj2)
{
for(var i = obj1.options.length - 1 ; i >= 0 ; i--)
{
if(obj1.options[i].selected)
{
var opt = new Option(obj1.options[i].text,obj1.options[i].value);
//opt.selected = true;
obj2.options.add(opt);
obj1.remove(i);
}
}
}
//-->
</SCRIPT>
document.form1.elements["selectvalue"].value=obj1.options[i].value;
<SCRIPT LANGUAGE="JavaScript">
//移动
function moveOption(obj1, obj2 , direction)//direction就是方向
{
if(){}//如果是从左到右
else if(){}//如果从右到左
}
//-->
</SCRIPT>