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两个select

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在csdn上转载的,作者忘记喽,下次看到在补上

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />  
<title>Untitled Document</title>  
<script type="text/javascript">
<!--  
    function addItem(objFrom,objTo){  
        for(var i = 0; i < objFrom.options.length;i++){  
            if(objFrom.options[i].selected == true){  
                var selectItem = new Option(objFrom.options[i].text,objFrom.options[i].value);  
                objTo.options.add(selectItem);  
                objFrom.options.remove(i);  
            }  
        }  
        sortItem(objTo);  
    }  
    function allAddItem(objFrom,objTo){  
        for(var i = objFrom.options.length - 1;i>=0;i--){  
            var objItem = new Option(objFrom.options[i].text,objFrom.options[i].value);  
            objTo.options.add(objItem);  
            objFrom.options.remove(i);      
        }  
        sortItem(objTo);  
    }  
    function sortItem(objTo){  
        var ln = objTo.options.length;  
        var arrText = new Array();  
        var arrValue = new Array();  
        for(var i=0;i<ln;i++){  
            arrText[i] = objTo.options[i].text;  
        }  
        arrText.sort();  
        for(var i=0;i<ln;i++){  
            for(var j = 0;j<objTo.options.length;j++){  
                if(arrText[i] == objTo.options[j].text){  
                   arrValue[i] = objTo.options[j].value;  
                   break;  
                }  
           }  
        }  
        while(ln--){  
            objTo.options[ln] = null;  
        }  
        for(i = 0;i<arrText.length;i++){  
            objTo.add(new Option(arrText[i],arrValue[i]));  
        }  
    }  
// -->
</script>  
</head>  
 
<body>  
<table>  
    <tr>  
        <td>Color Code </td>  
        <td></td>  
        <td>Sample Order </td>  
    </tr>  
    <tr>  
        <td>  
            <select id="selectColor" multiple="multiple" style="width:200px;height:200px;">  
                <option value="Black">Black</option>  
                <option value="Blue">Blue</option>  
                <option value="DK-RS">DARK RINSE</option>  
                <option value="DK-SW">DARK STONEWASH</option>  
                <option value="Green">Green</option>  
                <option value="MD-SL">MED SANDBLAST</option>  
                <option value="MD-SW">MED STONEWASH</option>  
                <option value="NA">Not applicable</option>  
                <option value="Yellow">Yellow</option>  
                <option value="Red">Red</option>  
            </select>  
 
        </td>  
        <td>  
            <table>  
                <tr>  
                    <td><input type="button" id="btn1" value="-> " onclick="addItem(selectColor,selectSo)"/></td>  
                </tr>  
                <tr>  
                    <td><input type="button" id="btn2" value="->>" onclick="allAddItem(selectColor,selectSo)"/></td>  
                </tr>  
                <tr>  
                    <td><input type="button" id="btn3" value="<<-" onclick="allAddItem(selectSo,selectColor)"/></td>  
                </tr>  
                <tr>  
                    <td><input type="button" id="btn4" value="<- " onclick="addItem(selectSo,selectColor)"/></td>  
                </tr>  
            </table>  
        </td>  
        <td>  
            <select id="selectSo" multiple="multiple" style="width:200px;height:200px;">  
            </select>  
        </td>  
    </tr>  
</table>  
</body>  
</html> 

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