<input type="checkbox" id="zyss" name="keyId">注意事项
<input type="checkbox" id="ggxx" name="keyId">公共信息
...
<input type="button" name="submit1" value="查询" class="button"
onclick="func()"> function func(){
if(document.getElementById("zyss").checked ==false && document.getElementById("ggxx").checked ==false){
alert("error")
}else{
document.forms[0].submit()
}
}
<input type="checkbox" id="ggxx" name="keyId">公共信息
...
<input type="button" name="submit1" value="查询" class="button"
onclick="func()"> function func(){
if(document.getElementById("zyss").checked ==false && document.getElementById("ggxx").checked ==false){
alert("error")
}else{
document.forms[0].submit()
}
}
<input type="checkbox" id="zyss" name="keyId">注意事项
<input type="checkbox" id="ggxx" name="keyId">公共信息
...<script language="javascript" type="text/javascript">
<!--
var chkNum = 0;
var chkbox = document.getElementsByName('keyId');
for(var i=0;i<chkbox.length;i++){
if(chkbox[i].checked){
chkNum++;
}
}
if(chkNum==0){
alert('please select ...');
// your other code
return false;
}else{
// your other code
return false;
}
//-->
</script>