function loadbackground(){
	if (AC_FL_RunContent == 0 || DetectFlashVer == 0) {
		alert("This page requires AC_RunActiveContent.js.");
	} else {
		var hasRightVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
		if(hasRightVersion) {  // if we've detected an acceptable version
			// embed the flash movie
			AC_FL_RunContent(
				'codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0',
				'width', '100%',
				'height', '100%',
				'src', 'background',
				'quality', 'best',
				'pluginspage', 'http://www.macromedia.com/go/getflashplayer',
				'align', 'middle',
				'play', 'true',
				'loop', 'true',
				'scale', 'exactfit',
				'wmode', 'transparent',
				'devicefont', 'false',
				'id', 'background',
				'bgcolor', '#ffffff',
				'name', 'background',
				'menu', 'false',
				'allowScriptAccess','sameDomain',
				'allowFullScreen','false',
				'movie', 'common/swf/fondo',
				'salign', ''
				); //end AC code
		} else {  // flash is too old or we can't detect the plugin
			var alternateContent = '<div id="sin_flash"><img src="fondo.jpg"></div>';
			return document.write(alternateContent);  // insert non-flash content
		}
	}
}