function randOrd()
	{
		return (Math.round(Math.random())-0.5); 
	}
	
	function fundoRandomico()
	{
		var strFlash;
		
		// Monta a array com os fundos
		arrFundo = new Array("fundo_faixas.swf", "fundo_circulos.swf", "fundo_triangulos.swf");
		// Ordena a array aleatoriamente
		arrFundo.sort(randOrd);
		
		// Monta o flash com o fundo sorteado
		document.write("<object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0\" width=\"100%\" height=\"100%\" id=\"faixas\" valign=\"top\">");
		document.write("<param name=\"allowScriptAccess\" value=\"sameDomain\" /><param name=\"allowFullScreen\" value=\"false\" />");
		document.write("<param name=\"movie\" value=\"" + arrFundo[0] + "\" /><param name=\"quality\" value=\"high\" />");
		document.write("<param name=\"scale\" value=\"noborder\" /><param name=\"wmode\" value=\"transparent\" />");
		document.write("<param name=\"bgcolor\" value=\"#2e406b\" />");
		document.write("<embed src=\"" + arrFundo[0] + "\" quality=\"high\" scale=\"noborder\" wmode=\"transparent\" bgcolor=\"#2e406b\" width=\"100%\" height=\"98%\" name=\"faixas\" align=\"bottom\" allowScriptAccess=\"sameDomain\" allowFullScreen=\"false\" type=\"application/x-shockwave-flash\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" />");
		document.write("</object>");

	}