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<form name=hrong> <input type=checkbox name=All onclick="checkAll('mm')"> 全选 <br/> <input type=checkbox name=mm onclick="checkItem('All')"> <br/> <input type=checkbox name=mm onclick="checkItem('All')"> <br/> <input type=checkbox name=mm onclick="checkItem('All')"> <br/> <input type=checkbox name=mm onclick="checkItem('All')"> <br/> <input type=checkbox name=mm onclick="checkItem('All')"> <br/> <br/> <input type=checkbox name=All2 onclick="checkAll('mm2′)"> 全选 <br/> <input type=checkbox name=mm2 onclick="checkItem('All2′)"> <br/> <input type=checkbox name=mm2 onclick="checkItem('All2′)"> <br/> <input type=checkbox name=mm2 onclick="checkItem('All2′)"> <br/> <input type=checkbox name=mm2 onclick="checkItem('All2′)"> <br/> <input type=checkbox name=mm2 onclick="checkItem('All2′)"> <br/> </form> <script LANGUAGE="JavaScript"> function checkAll(str) { var a = document.getElementsByName(str); var n = a.length; for (var i = 0; i < n; i++) a[i].checked = window.event.srcElement.checked; } function checkItem(str) { var e = window.event.srcElement; var all = eval("document.hrong." + str); if (e.checked) { var a = document.getElementsByName(e.name); all.checked = true; for (var i = 0; i < a.length; i++) { if (!a[i].checked) { all.checked = false; break; } } } else all.checked = false; } </script> |