diff --git a/build b/build
index 0b05804..e6e1cd3 100755
--- a/build
+++ b/build
@@ -18,7 +18,11 @@ jsmin < jo.js > jo_min.js
 # echo "Compiling jo.js -> jo_com.js"
 # java -jar ~/bin/compiler.jar --js=jo.js --js_output_file=jo_com.js
 # gzip -c jo_com.js > jo_com.js.gz
-cd ..
-echo "Done."
 
+if [[ ${1} && -d ${1} ]]; then
+echo "Copying files to test directory"
+cp jo.js jo_min.js ${1}
+fi
 
+cd ..
+echo "Done compiling."
diff --git a/js/ui/table.js b/js/ui/table.js
index 999d94a..16f5425 100644
--- a/js/ui/table.js
+++ b/js/ui/table.js
@@ -40,20 +40,41 @@
 	- `getRow()`, `getCol()`
 
 	  Return the current row or column
+
+	- `setOmitCols(array)`
+
+	  Sets the columns whose header is in the passed array be omited. 
+
 */
 
 joTable = function(data) {
+    this.omitCols = new Array();
+    this.omitIndex = new Array();
 	joList.apply(this, arguments);
 };
+
 joTable.extend(joList, {
 	tagName: "jotable",
 	
+	// With another round of formatItem as overhead because of refresh()
+    setOmitCols: function(omitArray){
+        this.omitCols = omitArray;
+        this.refresh();
+    },
+
 	// default row formatter
 	formatItem: function(row, index) {
 		var tr = document.createElement("tr");
-		
+
 		for (var i = 0, l = row.length; i < l; i++) {
 			var o = document.createElement(index ? "td" : "th");
+
+            if ((this.omitCols.indexOf(row[i]) != -1)) {
+			    this.omitIndex.push(i);
+			}
+			
+			if (this.omitIndex.indexOf(i%l) > -1) continue;
+
 			o.innerHTML = row[i];
 			
 			// this is a little brittle, but plays nicely with joList's select event
@@ -88,6 +109,5 @@ joTable.extend(joList, {
 		var rowsize = this.data[0].length;
 
 		return index % rowsize;
-	}	
+	}
 });
-