修正ps页lazyload效果

@@ -51,8 +51,9 @@ exports.init = function() {
 
         //lazyload
         $('img.lazy').lazyload({
-             effect : 'fadeIn',
-             placeholder: 'data:image/gif;base64,R0lGODlhAQABAJEAAAAAAP///93d3f///yH5BAEAAAMALAAAAAABAAEAAAICVAEAOw=='
+            effect : 'fadeIn',
+            effect_speed: 10,
+            placeholder: 'data:image/gif;base64,R0lGODlhAQABAJEAAAAAAP///93d3f///yH5BAEAAAMALAAAAAABAAEAAAICVAEAOw=='
         });
         
         aIntro = $intro.attr('_title');