var browser;
browser=navigator.appName; 

if (browser=="Netscape") {
document.write('<input type="image" name="submit" style="margin-bottom:8px;" src="../templates/images/ok_button.gif" width="21" height="17" tabindex="9"></input>');
}
if (browser=="Microsoft Internet Explorer") {
document.write('<input type="image" name="submit" style="margin-bottom:11px;" src="../templates/images/ok_button.gif" width="21" height="17" tabindex="9"></input>');
}