function showHide (itemId,flag)
{
    document.getElementById(itemId).style.visibility = (flag) ? 'visible' : 'hidden';
}
function replaceImg (newPath)
{
	var placeholder = document.getElementById('placeholder');
	placeholder.src = newPath;
	placeholder.onload = function ()
									{
										MM_effectAppearFade(placeholder, 500, 0, 100, false);
									};
}
function loadImage (newPath)
{
	var placeholder = document.getElementById('placeholder');
 	MM_effectAppearFade(placeholder, 500, 100, 0, false);
	setTimeout(function()
						{
							replaceImg(newPath);
						}, 500);
}