function creaMail(pre,exte,bdy,sty)
{
 if(!bdy) bdy = "";
 if(!sty) sty = "";
 document.write("<a href='mailto:");
 document.write(pre+"@"+exte+bdy+"' "+sty+">");
 document.write(pre+"@"+exte+"</a>");
}

function resizer(w, h)
{
 wr= (screen.width / 2)-(w/2);
 tr= (screen.height / 2)-(h/2);
 this.window.resizeTo(w,h);
 this.window.moveTo(wr,tr);
}