$(document).ready(function() {

$("#morePictures dd a").click(function() {

    var imagePath = $(this).attr("href");
    $("#mainContent img.attachment-large").attr({ src: imagePath});
    
    $("#mainContent img.attachment-large").removeAttr("width")
           .removeAttr("height")
           .css({ width: "", height: "" });  
    
return false;

});
	
});