Allow a dijit to be focusable in a Textbox. (Yes I know that dijit.grid.cells._Widget and _Base exists exactly for this purpose, but I wanted to do it without doing that).

FocusableDijitFormatter.js

formatCurrency: function(value, idx){
		if(!this._widgets[idx]){
			this._widgets[idx] = new dijit.form.TextBox(
					{	value: value, 
						constraints: {pattern:"#,###,###.00"}
					});
				this._widgets[idx]._connection = dojo.connect(this._widgets[idx], "onFocus", function(e,f,g){ 
					setTimeout(dojo.hitch(this,function(){
						dojo.disconnect(this._connection);
							dojox.grid.util.fire(this,"focus");
						
						}),90);
				} );
				
				this._widgets[idx]._connection = dojo.connect(this._widgets[idx], "onBlur", function(e,f,g){ 
					this._widgets[idx]._connection = dojo.connect(this._widgets[idx], "onFocus", function(e,f,g){ 
						setTimeout(dojo.hitch(this,function(){
							dojo.disconnect(this._connection);
								dojox.grid.util.fire(this,"focus");
							
							}),90);
					} );
				} );
		}
		return this._widgets[idx];
	},