form中采用图片作为提交按钮

<span style="font-size:14px;"><FORM name="formName" action="xxxx" >
<INPUT name="textfield2">
<INPUT type="image" height=19 width=53 src="xxx.gif" align=absMiddle border=0 name=RedImg onclick="this.form.submit()">
<INPUT type=image height=19 width=53 src="xxx.gif" align=absMiddle border=0 name=RedImg3 onclick="this.form.reset()">
</FORM> </span>