function highlight_current_image(id) {
	$(".t_media").css("filter","alpha(opacity=50)");
	$(".t_media").css("opacity","0.5");
	$("#"+id).css("filter","alpha(opacity=100)");
	$("#"+id).css("opacity","1");			
}

function swap_image(new_image,id) {
    if (new_image.match("jpg")) {
        $("#swap").replaceWith($("<img>").attr({id: "swap",src: new_image }));
    } else if (new_image.match("youtube")) {
        $("#swap").replaceWith('<object id="swap" width="500" height="300"><param name="movie" value="' + new_image + 
        '"></param><param name="allowFullScreen" value="false"></param><param name="allowscriptaccess" value="always"></param><embed src="' +
        new_image + '" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="500" height="300"></embed></object>'
        );
    };
	highlight_current_image(id);
}