var strIdentifier	= 'SM02';
	var strDir			= 'images/';
	var strID			= 'imgcontainer';

	function PreloadImage (intID)
	{

		eval ("image" + intID + " = new Image();");
		eval ("image" + intID + ".src = '" + strDir + strIdentifier + "_" + intID + ".jpg'");

	}

	function ThumbOver (objImg,intID)
	{

		document.getElementById(strID).src = strDir + strIdentifier + '_' + intID + '.jpg';

		objImg.onmouseout = function ()
		{

			ThumbOut ();

		}

		return false;

	}

	function ThumbOut ()
	{

		document.getElementById(strID).src = strDir + strIdentifier + '.jpg';

		return false;

	}

	PreloadImage (1);
	PreloadImage (2);
	PreloadImage (3);
	PreloadImage (4);