function isEmail (s) {
			var i = 1;
			var sLength = s.length;
			while ((i < sLength) && (s.charAt(i) != "@")) { 
				i++
			}
			
			if ((i >= sLength) || (s.charAt(i) != "@")) return false;
			else i += 2;
			
			while ((i < sLength) && (s.charAt(i) != ".")) { 
				i++
			}
			
			if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
			else return true;
		}


function mostrarflash(pTipo) {
	document.write('<embed src=imagenes/cabecera_interior.swf?c_tipo=' + pTipo + ' quality=high pluginspage=http://www.macromedia.com/go/getflashplayer type=application/x-shockwave-flash width=962 height=102 wmode=transparent name=cabecera align=middle></embed>'); 
}