diff --git a/jQuery_implementation/jqColor.js b/jQuery_implementation/jqColor.js
index deb0a04..ebfc487 100644
--- a/jQuery_implementation/jqColor.js
+++ b/jQuery_implementation/jqColor.js
@@ -68,7 +68,7 @@
 							klass: window.ColorPicker,
 							input: elm,
 							patch: elm,
-							isIE8: document.all && !document.addEventListener, // Opera???
+							isIE8: !!document.all && !document.addEventListener, // Opera???
 							animationSpeed: 200,
 							draggable: true,
 							margin: {left: -1, top: 2},