function alertUser(alertMessage)
{
    if(alertMessage != "")
    {

	    document.getElementById("alertCover").style.display = "block";
	    document.getElementById("userAlert").innerHTML = "<div id='alertClose'><a href='javascript: closeAlert();'><img src='images/close-alert.gif' border='0'/></a></div><img src='images/alert-image.jpg' id='alertImage'/><div id='alertText'>" + alertMessage + "</div>";
	    document.getElementById("userAlert").style.display = "block";
    }
}

function closeAlert()
{
    document.getElementById("alertCover").style.display = "none";
	document.getElementById("userAlert").style.display = "none"
}