code:

var keyadex = new Array(/[^oe]ad[^d]/i, /cn\.yimg\.com/i, /icast/i);
var keyadin = new Array(/[^\/]\/ad[^dj]/i, /[a-df-np-z]ad[^a-z=\/-]/i, /[^a-z\/,\s]ad[^dj]/i);

var blist = new Array();

var wlist = new Array(/mail\.yahoo/i);

var dbg = 0;
function IsAD?(str, flag)
{
var keyad;
if ( flag )

keyad = keyadex ;

else

keyad = keyadin ;

for (var i = 0; i < keyad.length; i) {

if (keyad[i].test(str)

true)return 1;

}
return 0;
}

function filterex(e)
{
for (var i = 0; i < blist.length; i) {

if (blist[i].test(location.host)

true) { e.preventDefault(); return;}

}

var addr=e.element.getAttribute("src");
if (IsAD?(addr, 1)){

e.preventDefault();if (dbg) { alert("banex"+addr); return;}

}
if (dbg)

alert("threx"+addr);

}

function filterin(e)
{
for (var i = 0; i < wlist.length; i) {

if (wlist[i].test(location.host)

true) return;

}

var tsc = e.element.text;
if ( IsAD?(tsc, 0) ) {

e.preventDefault();if (dbg) { alert("banin"+tsc); return;}

}
if (dbg)

alert("thrin "+tsc);

}

window.opera.addEventListener( 'BeforeExternalScript?', filterex, false);
window.opera.addEventListener( 'BeforeScript?', filterin, false);

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