js触发submit按钮

<script language="javascript">

function formSubmit() {

document.login.dosubmit.click();

}

</script>

<table width="50%" border="0" cellspacing="0" cellpadding="0">

<form id="login" name="login" action="login.php" method="post">

<tr>

<td width="16%" align="center" valign="middle">

<div align="right">

<div style="display:none"><input type="submit" value="登 录" name="dosubmit" id="dosubmit" /></div>

<!-- border='0'可以去掉图片的边框 -->

<a href="#" onClick="formSubmit();"><img src="denglu.gif" border='0'></a> </div>

</td>

</tr>

</form>

</table>