问使用jQuery在同一页面上打开视频后，Colorbox图像显示较小

EN

<link href="css/gallery_colorbox.css" rel="stylesheet" type="text/css" />  
<script src="jquery-colorbox/jquery.colorbox-min.js" type="text/javascript"></script>  

<script>
//$.noConflict();
 jQuery(document).ready(function(){

    if(jQuery(window).width() < 800)
    {
        jQuery(".photo_gallery").colorbox({rel:'photo_gallery', maxWidth:"100%", maxHeight:"600px", current:"{current}/{total}"});
    } else { 
        jQuery(".photo_gallery").colorbox({rel:'photo_gallery', maxWidth:"800px", maxHeight:"600px", current:"{current}/{total}"});   
    }

    jQuery(".iframe").colorbox({iframe:true, fastIframe:false, width:"450px", height:"480px", transition:"fade", scrolling:false});
    jQuery(".youtube_video").colorbox({iframe:true, innerWidth:740, innerHeight:490, 
                                          onComplete : function() {   
                             jQuery('.cboxIframe').parent("#cboxLoadedContent").addClass('iframewrap');
                             jQuery('.cboxIframe').closest("#colorbox").addClass('coloriframebox');
                                           }  
                                      });

   });

</script>