var callouts=new Array();
callouts=["vesi_mich.swf","vesi_ou.swf","vesi_uk.swf","vesi_wis.swf"];
 
function getcallout() {
     var ttl = callouts.length-1;
     var ra=Math.random();
     var x=ttl * ra;
     var indx=(Math.round(x));
      //alert ("" + ra);
     return callouts[indx];
}