function controlGallery(){
    // ターゲットの取得
    var elems = $('#galleryblock #thumbnails .image');
    if(elems.length < 1){ return; }
    elems.click(
	function(){
	    $('#galleryblock #thumbnails .image.selected').removeClass('selected');
	    $(this).addClass('selected');
	    var id = $(this).attr('id').match(/^image-(\d*)$/)[1];
	    var selectedImage = images[id];
	    var src = selectedImage['fullsize_src'][0];
	    var caption = selectedImage['caption'];
	    var width;
	    var height;
	    if( selectedImage['fullsize_src'][1] > selectedImage['fullsize_src'][2] ){
		width = 500;
		height = parseInt(selectedImage['fullsize_src'][2] * 500 / selectedImage['fullsize_src'][1]);
	    } else {
		width = parseInt(selectedImage['fullsize_src'][1] * 374 / selectedImage['fullsize_src'][2]);
                height= 374; 
	    }
	    var imghtml= $('<img src="' + src + '" width="' + width + '" height="' + height + '" style ="margin-top:-' + parseInt(height/2) + 'px;margin-left:-'+ parseInt(width/2) +'px;"/>');
	    $('#galleryblock p#topphoto').fadeOut(600, function(){
		$('#galleryblock p#topphoto').html(imghtml);
		$('#galleryblock p#topphoto').fadeIn(600);
	    });
	    $('#galleryblock p#caption').html(caption);
	    window.location.href="#galleryblock";
	}
    );
}