checkbox全选和取消的例子

linleizi

<script language="JavaScript" type="text/javascript">function $(objName) {return document.getElementById(objName);}function selectItems(checkboxName) {var isNeedCheck = false;for(var i = 0; i < 10; i++) {var obj = $(checkboxName + (i + 1));if (obj) {if (!obj.checked) {isNeedCheck = true;break;}} else {break;}}for(var i = 0; i < 10; i++) {var obj = $(checkboxName + (i + 1));if (obj) {obj.checked = isNeedCheck;}}}</script><table><tr><td><input type="button" name="allSelect" onclick=selectItems('resultCheckbox');  value="全選" ></td></tr><tr><td><input type="checkbox" name="resultCheckbox1"></td></tr><tr><td><input type="checkbox" name="resultCheckbox2"></td></tr><tr><td><input type="checkbox" name="resultCheckbox3"></td></tr><tr><td><input type="checkbox" name="resultCheckbox4"></td></tr><tr><td><input type="checkbox" name="resultCheckbox5"></td></tr><tr><td><input type="checkbox" name="resultCheckbox6"></td></tr></table>