<tr>
<td colspan="2"> <input name="y2_again_reason_flg1" type="checkbox" class="checkbox" value="1">
<font class="m">桃子</font></td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg2" type="checkbox" class="checkbox" value="1">
<font class="m">苹果</font></td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg3" type="checkbox" class="checkbox" value="1">
<font class="m">香蕉</font></td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg4" type="checkbox" class="checkbox" value="1">
<font class="m">梨</font></td>
</tr>
判断一下没有一个被选中的情况,谢谢大家了
<td colspan="2"> <input name="y2_again_reason_flg1" type="checkbox" class="checkbox" value="1">
<font class="m">桃子</font></td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg2" type="checkbox" class="checkbox" value="1">
<font class="m">苹果</font></td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg3" type="checkbox" class="checkbox" value="1">
<font class="m">香蕉</font></td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg4" type="checkbox" class="checkbox" value="1">
<font class="m">梨</font></td>
</tr>
判断一下没有一个被选中的情况,谢谢大家了
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<script language="javascript" >
function isChecked()
{
var arr=new Array('y2_again_reason_flg1','y2_again_reason_flg2','y2_again_reason_flg3','y2_again_reason_flg4');
var count=0;
for(var i=0;i<arr.length;i++)
{
if(document.getElementById(arr[i]).checked)
count++;
}
if(count==0)
alert('没有被选中!');
else
alert('被选中了'+count.toString()+'项');
}
</script>
<BODY>
<table >
<tr>
<td colspan="2"> <input name="y2_again_reason_flg1" type="checkbox" class="checkbox" value="1">
<font class="m">桃子 </font> </td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg2" type="checkbox" class="checkbox" value="1">
<font class="m">苹果 </font> </td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg3" type="checkbox" class="checkbox" value="1">
<font class="m">香蕉 </font> </td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg4" type="checkbox" class="checkbox" value="1">
<font class="m">梨 </font> </td>
</tr>
</table>
<input type="button" onclick="isChecked()" value="选中没有" />
</BODY>
</HTML>
<table>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg1" type="checkbox" class="checkbox" value="1">
<font class="m">桃子 </font> </td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg2" type="checkbox" class="checkbox" value="1">
<font class="m">苹果 </font> </td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg3" type="checkbox" class="checkbox" value="1">
<font class="m">香蕉 </font> </td>
</tr>
<tr>
<td colspan="2"> <input name="y2_again_reason_flg4" type="checkbox" class="checkbox" value="1">
<font class="m">梨 </font> </td>
</tr>
</table>
<INPUT TYPE="button" value="检测" onclick="_Check()">
<SCRIPT LANGUAGE="JavaScript">
<!--
var num = 0;
function _Check(){ var obj = document.getElementsByTagName("input");
for(var i= 0; i < obj.length; i++){
if(obj[i].type == "checkbox" && obj[i].name.indexOf("y2_again_reason_flg") != -1){
if(obj[i].checked == false ){
num ++;
}
}
}
if(num >0){
alert("请全选");
return;
}else{
alert("ok")
}
}
//-->
</SCRIPT>