function vcastrEvent(type,state,playHeadTime,loadPersent) {
        document.forms["form1"].output.value = "\ntype:"+type+", state:"+state+", playHeadTime:"+playHeadTime+", loadPersent:"+loadPersent +document.forms["form1"].output.value;
     }
     function getVcastr() {
         if (navigator.appName.indexOf("Microsoft") != -1) {
             return window["vcastr3"];
         } else {
             return document["vcastr3"];
         }
     }