两个Select互换数据

两个Select互换数据，简单实用

ps：论坛上摘抄下来的

<title>两个Select互换数据，简单实用</title>

<mce:script language="JavaScript1.2"><!--

var MainSel = null;

var SlaveSel = null;

var Item_org = new Array();function DoAdd(){

var this_sel = null;

for(var i=0;i<MainSel.options.length;i++){

this_sel = MainSel.options[i];

if(this_sel.selected){

SlaveSel.appendChild(this_sel);

i--;

}

}

sort_Main(SlaveSel);

}function DoDel(){

var this_sel = null;

for(var i=0;i<SlaveSel.options.length;i++){

this_sel = SlaveSel.options[i];

if(this_sel.selected){

MainSel.appendChild(this_sel);

i--;

}

}

sort_Main(MainSel);

}function sort_Main(the_Sel){

var this_sel = null;

for(var i=0;i<Item_org.length;i++){

for(var j=0;j<the_Sel.options.length;j++){

this_sel = the_Sel.options[j];

if(this_sel.value==Item_org[i][0] && this_sel.text==Item_org[i][1]){

the_Sel.appendChild(this_sel);

}

}

}

}window.οnlοad=function(){

MainSel = select1;

SlaveSel = select2;

MainSel.οndblclick=DoAdd;

SlaveSel.οndblclick=DoDel;

var this_sel = null;

for(var i=0;i<MainSel.options.length;i++){

this_sel = MainSel.options[i];

Item_org.push(new Array(this_sel.value,this_sel.text));

}

}

// --></mce:script>

<table width="300" cellspacing="0" cellpDoAdding="0" align="center">

<tr>

<td width="45%" align="center">

<select id="select1" size="5" multiple style="width: 100px">

<option value="111">111</option>

<option value="222">222</option>

<option value="333">333</option>

<option value="444">444</option>

<option value="555">555</option>

<option value="666">666</option>

</select>

</td>

<td width="10%" align="center">

<input name="DoAdd" type="button" value=">>" onClick="DoAdd()"><br>

<input name="DoDel" type="button" value="<<" onClick="DoDel()">

</td>

<td width="45%" align="center">

<select id="select2" size="5" multiple style="width: 100px">

</select>

</td>

</tr>

</table>