var ban = Array();
var url = Array();

ban[1] = "http://www.parabenspravoce.com.br/banners/2908bea057.gif";
url[1] = "http://www.telemensagem.info"; 
ban[2] = "http://www.parabenspravoce.com.br/banners/b36eb6667f.gif";
url[2] = "http://www.telemensagem.info"; 
ban[3] = "http://www.resplendor.net/msn/banner/msn_468x60.gif";
url[3] = "http://www.resplendor.net/msn"; 
ban[4] = "http://www.resplendor.net/msn/banner/msn_468x60.gif";
url[4] = "http://www.resplendor.net/msn"; 

var rnd = Math.ceil(Math.random() * 4);

function banner(ultimo){
	
	if(ultimo==null)
		ultimo = 1;
	
	var rnd = Math.ceil(Math.random() * 4);
	while(rnd==ultimo){
		var rnd = Math.ceil(Math.random() * 4); 
	}
	
	document.getElementById("banner_img").src = ban[rnd];
	document.getElementById("banner_href").href = url[rnd];
	
	setTimeout("banner("+rnd+")",30000);

}

document.write("<a href="+url[rnd]+" mce_href="+url[rnd]+" target=\"_blank\" id=\"banner_href\"><img id=\"banner_img\" src="+ban[rnd]+" border=0></a>");

setTimeout("banner("+rnd+")",30000);