日期:2014-05-17 浏览次数:20691 次
<html> <head> <script type="text/javascript"> function checkEvent(name,allCheckId) { var allCk=document.getElementById(allCheckId); if(allCk.checked==true) checkAll(name); else checkAllNo(name); } //全选 function checkAll(name) { var names=document.getElementsByName(name); var len=names.length; if(len>0) { var i=0; for(i=0;i<len;i++) names[i].checked=true; } } //全不选 function checkAllNo(name) { var names=document.getElementsByName(name); var len=names.length; if(len>0) { var i=0; for(i=0;i<len;i++) names[i].checked=false; } } //反选 function reserveCheck(name) { var names=document.getElementsByName(name); var len=names.length; if(len>0) { var i=0; for(i=0;i<len;i++) { if(names[i].checked) names[i].checked=false; else names[i].checked=true; } } } </script> </head> <body> <input type="checkbox" id="ckall" onclick="checkEvent('ck','ckall')" />全选 <input type="checkbox" id="ckReserve" onclick="reserveCheck('ck','ckReserve')" />反选 <br /> <input type="checkbox" name="ck" value="1" />篮球 <br /> <input type="checkbox" name="ck" value="2" />旅游 <br /> <input type="checkbox" name="ck" value="3" />读书 <br /> <input type="checkbox" name="ck" value="4" />美食 <br /> <input type="checkbox" name="ck" value="5" />睡觉 </body> </html>