/*
*	Setzt die Grafik oben.
*/
function SetBackground()
{	if (document.getElementsByTagName("h1")[0])
	{	var SourcePath= "";
		if (document.getElementsByTagName("head")[0])
		{	var S= 0;
			while (document.getElementsByTagName("script")[S] && SourcePath == "")
			{	if (document.getElementsByTagName("script")[S].type == "text/javascript")
					SourcePath= document.getElementsByTagName("script")[S].src;
				++S;
			}

			if (SourcePath != "")
			{	SourcePath= SourcePath.substring(0, SourcePath.lastIndexOf("/"));
				SourcePath= SourcePath + "/background" + ((Math.floor(Math.random() * 16)) + 1) +
					".jpeg";
				SourcePath= "url(" + SourcePath + ")";
				document.getElementsByTagName("h1")[0].style.backgroundImage= SourcePath;
			}
		}
	}
}