function showMessage(text) {
document.getElementById("message").innerHTML = "<div id=\"messagewindow\"><img id=\"close\" src=\"/assets/images/msgclose.gif\" alt=\"Close\" onclick=\"hideMessage()\" /><p>" + text + "</p></div>";
document.getElementById("message").style.display = "block";
document.getElementById("base").style.opacity = "0.5";
}

function hideMessage() {
document.getElementById("message").innerHTML = "";
document.getElementById("message").style.display = "none";
document.getElementById("base").style.opacity = "1";
}