Opera browser help !

// ==UserScript==
// @name youtube opera 10.51 fix
// @namespace ftf.at.ua
// @description lol, looks like opera have problems playing video from youtube. or youtube hates opera... this scripts fixes (or supposed to) this little problem
// @include http://*.youtube.com/watch*
// @run-at document-end
// ==/UserScript==
(function(){
var array_merge = function(arr1, arr2){
if((arr1 && (arr1 instanceof Array)) && (arr2 && (arr2 instanceof Array))){
for (var idx in arr2) {
arr1.push(arr2[idx]);
}
}else if((arr1 && (arr1 instanceof Object)) && (arr2 && (arr2 instanceof Object))){
for(var idx in arr2){
if(idx in arr1){
if (typeof arr1[idx] == 'object' && typeof arr2 == 'object') {
arr1[idx] = array_merge(arr1[idx], arr2[idx]);
}else{
arr1[idx] = arr2[idx];
}
}else{
arr1[idx] = arr2[idx];
}
}
}
return arr1;
}
function DO(){
var swfc=window.yt.getConfig("SWF_CONFIG");
var args=swfc.args;
var flashvars='';
for(i in args){
flashvars+=(flashvars?"&":"")+i+"="+escape(args[i]);
}
var embed=document.createElement("embed");
var attrs=array_merge({"flashvars":flashvars},swfc.attrs);
attrs=array_merge(attrs,swfc.params);
attrs.type="application/x-shockwave-flash";
attrs.src=swfc.url;
for(i in attrs){
embed.setAttribute(i,attrs[i]);
}
var div=document.getElementById("watch-player");
div.innerHTML="";
div.appendChild(embed);
}
window.addEventListener("load",DO,0);
})()