Question

php中如何用javascript判断一个html控件image是否被选中，并传值 求代码，谢谢。

<input type="image" src="<?php echo $base_url?>images/s3.jpg" id="m2" onclick="chengeImg('m2','<?php echo $base_url?>images/s30.jpg');" name="yanse" value="2"/>

Answer 1

<form action= "upsend_submit.php " method= "post " enctype= "multipart/form-data " name= "frm " id= "frm " onsubmit= "return checkInput(this) ">

Answer 2

<SCRIPT language=javascript>
function checkInput(frm)
{
if(frm.image0.value == " " )
{
alert( "没有选择图片！ ");
return false;
}
return true;
}

function setOtherFile(str)
{

document.all.text.value =document.all.image0.value;
}

</SCRIPT>

<form action= "upsend_submit.php " method= "post " enctype= "multipart/form-data " name= "frm " id= "frm " onsubmit= "return checkInput(this) ">

<td>
<input type= "image" name= "image0 " onPropertyChange= "setOtherFile(this.value) ">
<input type= "hidden " name= "hidden " >

</td>
</tr>
<form>

Answer 3

贴代码……