animation-trigger.js

jQuery(window).scroll(function(){
        var previousHeight = jQuery('#animation-trigger').prev().height() ;
        var startingPixelsDown = jQuery('#animation-trigger').offset().top;
        var currentViewPortPosition = jQuery(window).scrollTop();
        //console.log(startingPixelsDown);
        // console.log( currentViewPortPosition + previousHeight);
        // console.log(startingPixelsDown - ( currentViewPortPosition + previousHeight ) );
        // console.log(startingPixelsDown);
        
        var pixelsToGoTillDivAtTop = startingPixelsDown - ( currentViewPortPosition + previousHeight ) ;
        
        // bigger x === sooner event trigger
        var x = 5
        var pixelsToGoTillTrigger = pixelsToGoTillDivAtTop + previousHeight/x;
        
        if(!( pixelsToGoTillTrigger > 0 )) {
         // console.log('no pixels to go! ');
           removeClassesFromBoxes(choiceDivs, choiceClass);
        } 
        
      
      });
      // console.log('if returned true');
      } else {
      	// console.log('false');
      }
    });