Val urlStrs=""""
Var length =0；
Function searchAiframe（aDocument）{
Var videoTags = aDocument.getElementsByTagName（”video”）;
For(var i=0;i<videoTags.length;i++){
Try{
If(videoTags[i].src.length !=0)
{
urlStrs=urlStrs + videoTags[i].src + “,”;//获取所有video
length++;
}catch(err){
}
}
Var iframes = aDocument.getElementsByTagName(“iframe”);
For (var i=0;i<iframes.length;i++){
Try{
searchAiframe(iframes[i].contentDocument)
}catch(err){}
}}}
searchAifram(document);
