javascript实现全选，反选及全不选
javascript实现全选，反选及全部选html 代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>无标题文档</title><script language="javascript"> function select1(oper){var arr= document.getElementsByName("fav"); for(var i=0;i<arr.length;i++){ switch(oper){case 1: arr.checked=oper; break; case 0:arr.checked=oper; break; case -1: arr.checked=! arr.checked; break; } }}</script></head><body> <input type="checkbox" name="fav"value="吃饭"/>吃放 <input type="checkbox" name="fav"value="吃饭2"/>吃放2 <input type="checkbox" name="fav"value="吃饭3"/>吃放3 <input type="checkbox" name="fav"value="吃饭4"/>吃放5 <input type="checkbox" name="fav"value="吃饭6"/>吃放6 <input type="checkbox" name="fav"value="吃饭7"/>吃放7 <input type="checkbox" name="fav"value="吃饭8"/>吃放8 <input type="button" value="全选" /> <input type="button" value="反选" /> <input type="button" value="取消" /> </body></html>
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