window.onload = submitByLink;
document.onkeypress = submitForm;

function submitByLink() {
	var links = document.getElementsByTagName('a');
	for(var i=0;i<links.length;i++){
		if(links[i].className == 'logon-link'){
			links[i].onclick = function(){ document.loginform.submit(); return false; }
		}
	}
}

function submitForm(e) {
	var loginform = document.loginform;
	if(!loginform) return;
	var login_input = loginform.user_login;
	var pass_input = loginform.user_pass;
	if(!(login_input && pass_input) || !(login_input.value && pass_input.value)) return;
	if (!e) var e = window.event;
	var keycode = e.keyCode ? e.keyCode : e.which;
	if(keycode == 13) {
		loginform.submit();
	}
}