Question

javascript提交表单时验证

太长了，不能发上来，我把它发到贴吧里了，在这里可以看到：

http://tieba.baidu.com/f?kz=1076005482

Answer 1

function validate(){
var t1 = document.getElementById('select_cn');
var t2 = document.getElementById('select_wsrs');
var t1val =document.getElementById('gnmj');
var t2val =document.getElementById('syrs');

if(t1.style.display=='block'&&t2.style.display=='block'&&(t1val.value==''||t2val.value=='')){
alert("2个都不能为空");return false;
}else if(t1.style.display=='block'&&t1val.value==''){
alert("第1个不能为空");return false;
}else if(t2.style.display=='block'&&t2val.value==''){
alert("第2个不能为空");return false;
}else{
alert("提交");return true;
}

}
<input type="radio" onclick="showdiv1()" name="aaa"/>选择第1个单选按钮
<input type="radio" onclick="showdiv2()" name="aaa"/>选择第2个单选按钮
<input type="radio" onclick="showdiv12()" name="aaa"/>选择第3个单选按钮

<input id="select_submit" type="submit" value="确定" onclick="return validate();" style="display:none" />