请教一个原理问题
function submit_login(e)<br />{<br /> if (typeof e != 'undefined' && !enter_key_trap(e)) {<br /> return;<br /> }<br /><br /> if (document.horde_login.horde_user.value == "") {<br /> alert("<?php echo addslashes(_("Please provide your username and password")) ?>");<br /> document.horde_login.horde_user.focus();<br /> return false;<br /> } else if (document.horde_login.horde_pass.value == "") {<br /> alert("<?php echo addslashes(_("Please provide your username and password")) ?>");<br /> document.horde_login.horde_pass.focus();<br /> return false;<br /> } else {<br /> document.horde_login.loginButton.disabled = true;<br /><?php if (!empty($ie_clientcaps)): ?><br /> try {<br /> document.horde_login.ie_version.value = objCCaps.getComponentVersion("{89820200-ECBD-11CF-8B85-00AA005B4383}", "componentid");<br /> } catch (e) {<br /> }<br /><?php endif; ?><br /> document.horde_login.submit();<br /> return true;<br /> }<br />}
