diff --git a/js/boxesFx.js b/js/boxesFx.js
index 6fdc232..f1d4d95 100644
--- a/js/boxesFx.js
+++ b/js/boxesFx.js
@@ -67,7 +67,7 @@
 		// the panels
 		this.panels = [].slice.call( this.el.querySelectorAll( '.panel' ) );
 		// total number of panels (4 for this demo)
-		//this.panelsCount = this.panels.length;
+		this.slidesCount = this.panels.length;
 		this.panelsCount = 4;
 		// current panel´s index
 		this.current = 0;
@@ -157,10 +157,10 @@
 		var self = this, currentPanel = this.panels[ this.current ];
 
 		if( dir === 'next' ) {
-			this.current = this.current < this.panelsCount - 1 ? this.current + 1 : 0;			
+			this.current = this.current < this.slidesCount - 1 ? this.current + 1 : 0;			
 		}
 		else {
-			this.current = this.current > 0 ? this.current - 1 : this.panelsCount - 1;
+			this.current = this.current > 0 ? this.current - 1 : this.slidesCount - 1;
 		}
 
 		// next panel to be shown