function disableForm(theform) {
	if (document.all || document.getElementById) {
		for (i = 0; i < theform.length; i++) {
			var tempobj = theform.elements[i];
			if (tempobj.type.toLowerCase() == "submit" || tempobj.type.toLowerCase() == "reset")
			tempobj.disabled = true;
		}
	}
}

function checkloginform() {
	var user = document.frmlogin.username;
	var pass = document.frmlogin.password;
	var emsg = document.getElementById('errmsg');
	if (user.value == "") {
		emsg.innerHTML = lang[6];
		user.focus();
		return false;
	} else if (pass.value == "") {
		emsg.innerHTML = lang[7];
		pass.focus();
		return false;
	} else {
		emsg.innerHTML = lang[31];
		disableForm(document.frmlogin);
		setTimeout("document.frmlogin.submit();",500);
		return false;
	}
}