Тимофей

<script src="/templates/ваш_шаблон/js/iframe.js" type="text/javascript"></script>

$(document).ready(function() {
$("iframe").each(function(){
var ifr_source = $(this).attr('src');
var wmode = "wmode=transparent";
if(ifr_source.indexOf('?') != -1) {
var getQString = ifr_source.split('?');
var oldString = getQString[1];
var newString = getQString[0];
$(this).attr('src',newString+'?'+wmode+'&'+oldString);
}
else $(this).attr('src',ifr_source+'?'+wmode);
});
});