function zoomin(z){

var img = document.getElementById("img_atispam");

tipo = z.src;
if(tipo.indexOf("lupam.jpg")>0){
img.width = "130";
img.height ="40";
indice_base =z.src.indexOf("lupam.jpg");
base = z.src.substring(0,indice_base);
z.src = base+"lupa.jpg";


}
else{
img.width = "249";
img.height ="99";
indice_base =z.src.indexOf("lupa.jpg");
base = z.src.substring(0,indice_base);
z.src = base+"lupam.jpg"; 

}


}

function actualizarimg(){
var img = document.getElementById("img_atispam");

img.src = ""
var randomnumber=Math.floor(Math.random()*11)
img.src="atispam/antispamf.php?id="+randomnumber;
/*indice_base_img =img.src.indexOf("lupa.jpg");
base_img = img.src.substring(0,indice_base);*/


}