HTML&JavaScript实现全选小例子
<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>全选或其全不选</title><script language="javascript">function checkAll(){ var allCheckBoxs=document.getElementsByName("isBuy"); for(var i = 0; i<allCheckBoxs.length;i++) { if(allCheckBoxs[i].type="checkbox") {if(allCheckBoxs[i].checked==true){allCheckBoxs[i].checked=false;}else if(allCheckBoxs[i].checked==false){allCheckBoxs[i].checked=true;} } }}</script></head><body><a href="javascript:checkAll(true)">全选</a><a href="javascript:checkAll(false)">全不选</a><input type="checkbox" name="" onclick="javascript:checkAll()">全选<table width="250" height="194" border="0"> <tr> <td width="105"> <input type="checkbox" name="isBuy" /> </td> <td width="129" colspan="2">张三</td> </tr> <tr> <td width="105"> <input type="checkbox" name="isBuy" /></td> <td width="129" colspan="2">李四</td> </tr> <tr> <td width="105" > <input type="checkbox" name="isBuy"/></td> <td width="129" colspan="2">王麻子</td> </tr> <td width="105"> <input type="checkbox" name="isBuy"/></td> <td width="129" colspan="2">赵六</td> </tr></table></body></html>