<html><title>JavaScript 获取复选框的值</title><script>/*** 判断复选框checkbox是否选中，并取出值* edit by * date：/7/3*/function checkbox(){var str=document.getElementsByName("box");var objarray=str.length;var chestr="";for (i=0;i<objarray;i++){if(str[i].checked == true){chestr+=str[i].value+",";}}if(chestr == ""){alert("请先选择复选框～！");}else{alert("复选框的值是："+chestr);}}</script>
选择你擅长的技术领域：
<input type="checkbox" name="box" id="box1" value="ASP" />ASP<input type="checkbox" name="box" id="box2" value="PHP" />PHP<input type="checkbox" name="box" id="box3" value="JSP" />JSP<input type="button" name="button" id="button" οnclick="checkbox()" value="提交" />
