function showLoading(downloadUrl) {
    document.getElementById('popup_inner').style.display = 'none';
    document.getElementById('popup').style.display = 'block';
    document.getElementById('loadingNotice').innerHTML = '<img src="/images/template/loading.gif" alt="Loading... Please wait" />';
    document.getElementById('loadingNotice').style.display = 'block';
    new Ajax.Request(downloadUrl,
        {
		    method:'get',
    		onSuccess: function(transport) {
                document.getElementById('popup_inner').style.display = 'none';
                document.getElementById('popup').style.display = 'none';
                document.getElementById('loadingNotice').innerHTML = '';
                document.getElementById('loadingNotice').style.display = 'none';
                window.location.href = downloadUrl;
            },
    		onFailure: function(){ alert('Something went wrong...') }
		}
	);
}
/**
 * Button prettifying functionality
 */

//On mouse-over
function img_mouse_over(id, name){
button = document.getElementById(id);
button.src='/images/template/buttons/silver/'+name+'Hover.png'
}

// Restore source
function img_mouse_clear(id, name){
button = document.getElementById(id);
button.src='/images/template/buttons/silver/'+name+'.png'
}

// Mouse down
function img_mouse_down(id, name){
button = document.getElementById(id);
button.src='/images/template/buttons/silver/'+name+'Click.png'
}