mike.treba.cz
$.fn.showWhenScrolled=function(){
var self = this;
this.init = function(){
self.each(function(){
var self_top = $(this).offset().top;
var scroll_top = $(window).scrollTop();
var win_height = $(window).height();
var frame = $(this).find('iframe');
if(scroll_top > (self_top - win_height)){
if(!frame.attr('src')){
frame.attr({src:frame.attr('title')});
}
}
});
};
$(window).scroll(function(){
self.init();
}).resize(function(){
self.init();
});
self.init();
};
$('.youtube-container').showWhenScrolled();