function _build_overlay(caller){settings.markup=settings.markup.replace('{pp_social}',(settings.social_tools)?settings.social_tools:'');$('body').append(settings.markup);$pp_pic_holder=$('.pp_pic_holder'),$ppt=$('.ppt'),$pp_overlay=$('div.pp_overlay');if(isSet&&settings.overlay_gallery){currentGalleryPage=0;toInject="";for(var i=0;i<pp_images.length;i++){if(!pp_images[i].match(/\b(jpg|jpeg|png|gif)\b/gi)){classname='default';img_src='';}else{classname='';img_src=pp_images[i];}