@@ -76,10 +76,10 @@
  * @cat Dimensions
  */
 $.fn.innerHeight = function() {
-	return this.get(0) == window || this.get(0) == document ?
-		this.height() :
-		this.get(0).offsetHeight - parseInt(this.css("borderTop")) - parseInt(this.css("borderBottom"));
-};
+	return this.get(0) == window || this.get(0) == document ?
+		this.height() :
+		this.get(0).offsetHeight - parseInt(this.css("borderTop") || 0) - parseInt(this.css("borderBottom") || 0);
+};
 
 /**
  * Returns the inner width value (without border) for the first matched element.
@@ -94,10 +94,10 @@
  * @cat Dimensions
  */
 $.fn.innerWidth = function() {
-	return this.get(0) == window || this.get(0) == document ?
-		this.width() :
-		this.get(0).offsetWidth - parseInt(this.css("borderLeft")) - parseInt(this.css("borderRight"));
-};
+	return this.get(0) == window || this.get(0) == document ?
+		this.width() :
+		this.get(0).offsetWidth - parseInt(this.css("borderLeft") || 0) - parseInt(this.css("borderRight") || 0);
+};
 
 /**
  * Returns the outer height value (including border) for the first matched element.