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/* 列表框互相操作函数集 */
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//描述: 添加不重复列表框元素
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function selAdd( srcList, dstList )
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{
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var selectedIndex = new Array();
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var count = 0;
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for ( i=0; i<srcList.options.length; i++ ){
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if ( srcList.options[i].selected ){
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selectedIndex[count] = i;
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count ++;
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}
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}
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for ( j=0; j<selectedIndex.length; j++ ){
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k = selectedIndex[j];
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if ( chkDup( srcList.options[k].value, dstList )==false ){
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&, nbsp; dstList.options.length++;
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var len = dstList.options.length-1;
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dstList.options[len].value = srcList.options[k].value;
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dstList.options[len].text = srcList.options[k].text;
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}
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}
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}
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//描述: 删除列表框元素
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function selDel( list )
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{
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var len = list.options.length;
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var idx = 0;
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while ( idx< len ){
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if ( list.options[idx].selected ){
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list.options.remove(idx);
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len = list.options.length;
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}
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else{
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idx ++;
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}
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}
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}
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//描述: 检测列表框元素重复
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function chkDup( item, list )
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{
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for ( i=0; i<list.options.length; i++ ){
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//alert( item + " - " + list.options[i].value );
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if ( item == list.options[i].value ){
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return true;
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}
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}
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return false;
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}
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//描述: 选择列表框的全部成员
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function selSel( list, item )
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{
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item.value = " ";
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for ( i=0; i<list.options.length; i++ ){
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list.options[i].selected=true;
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item.value += list.options[i].value + " ";
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}
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}
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function selSelSingle( list, value )
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{
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for ( i=0; i<list.options.length; i++ ){
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if ( list.options[i].value == value ){
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list.options[i].selected=true;
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break;
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}
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}
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}
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//描述: 根据数组初始化列表框
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function selList( item, arr )
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{
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var curIndex, insIndex, val, text;
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var arrItem = new Array();
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if ( item ){
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item.length = 0;
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curIndex = 0;
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for ( i=0; i<arr.length; i++ ){
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item.length ++;
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insIndex = item.length - 1;
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if ( arr[i] ){
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arrItem = arr[i].split( ", " );
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text = arrItem[1];
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val = arrItem[0];
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item.options[ insIndex ].text = text;
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item.options[ insIndex ].value= val;
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}
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}
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}
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}

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