diff --git a/src/databr.js b/src/databr.js
index 66279c41..db65c7c9 100644
--- a/src/databr.js
+++ b/src/databr.js
@@ -214,7 +214,7 @@ function QRCodeDataBlockReader(blocks,  version,  numErrorCorrectionCode)
 			var unicodeString = "";
 			do 
 			{
-				intData = getNextBits(13);
+				intData = this.getNextBits(13);
 				var lowerByte = intData % 0xC0;
 				var higherByte = intData / 0xC0;
 				
diff --git a/src/findpat.js b/src/findpat.js
index 08a16ff8..33910385 100644
--- a/src/findpat.js
+++ b/src/findpat.js
@@ -634,7 +634,7 @@ function FinderPatternFinder()
 					if (this.hasSkipped)
 					{
 						// Found a third one
-						done = haveMultiplyConfirmedCenters();
+						done = this.haveMultiplyConfirmedCenters();
 					}
 				}
 			}
diff --git a/src/formatinf.js b/src/formatinf.js
index 7e4b5926..62266a4c 100644
--- a/src/formatinf.js
+++ b/src/formatinf.js
@@ -43,7 +43,7 @@ function FormatInformation(formatInfo)
 	});
 	this.GetHashCode=function()
 	{
-		return (this.errorCorrectionLevel.ordinal() << 3) |  dataMask;
+		return (this.errorCorrectionLevel.ordinal() << 3) |  this.dataMask;
 	}
 	this.Equals=function( o)
 	{
diff --git a/src/gf256.js b/src/gf256.js
index 97658627..8eb6b617 100644
--- a/src/gf256.js
+++ b/src/gf256.js
@@ -63,7 +63,7 @@ function GF256( primitive)
 			}
 			if (coefficient == 0)
 			{
-				return zero;
+				return this.zero;
 			}
 			var coefficients = new Array(degree + 1);
 			for(var i=0;i<coefficients.length;i++)coefficients[i]=0;
diff --git a/src/rsdecoder.js b/src/rsdecoder.js
index 640769a5..74464683 100644
--- a/src/rsdecoder.js
+++ b/src/rsdecoder.js
@@ -132,7 +132,7 @@ function ReedSolomonDecoder(field)
 			if (numErrors == 1)
 			{
 				// shortcut
-				return new Array(errorLocator.getCoefficient(1));
+				return [ errorLocator.getCoefficient(1) ];
 			}
 			var result = new Array(numErrors);
 			var e = 0;
diff --git a/src/version.js b/src/version.js
index 4e19c7f1..97576810 100644
--- a/src/version.js
+++ b/src/version.js
@@ -43,9 +43,9 @@ function ECBlocks( ecCodewordsPerBlock,  ecBlocks1,  ecBlocks2)
 {
 	this.ecCodewordsPerBlock = ecCodewordsPerBlock;
 	if(ecBlocks2)
-		this.ecBlocks = new Array(ecBlocks1, ecBlocks2);
+		this.ecBlocks = [ ecBlocks1, ecBlocks2 ];
 	else
-		this.ecBlocks = new Array(ecBlocks1);
+		this.ecBlocks = [ ecBlocks1 ];
 	
 	this.__defineGetter__("ECCodewordsPerBlock", function()
 	{