Allow NumberTextBox to accept focus on a Enhanced Data Grid

NumberTextBox.js

formatCurrency: function(value, idx,e){
		
		if(!this._widgets[e.field][idx]){
			this._widgets[e.field][idx] = new dijit.form.NumberTextBox(
					{	value: value,
						'class': 'ratesNumber',
						constraints: {pattern:"#,###,###.00"
							}
					});
			
			this._widgets[e.field][idx].delay = 70;
			this._widgets[e.field][idx].focusThrottle = function(node){
														        return dojo.hitch(this, function() {
														                if (this.executionTimer) {
														                        clearTimeout(this.executionTimer);
														                }
														        
														               this.executionTimer = setTimeout(dojo.hitch(this,function() {
														             console.log("Throttling complete");
														             dojox.grid.util.fire(node,"focus");
														                }), this.delay);
														        })();
															}
				if(!this._widgets[e.field][idx]._connection){
					this._widgets[e.field][idx]._connection = dojo.connect(this._widgets[e.field][idx], "onFocus", function(e,f,g){ 
						console.log("Focusing Connection");
							setTimeout(dojo.hitch(this,function(){
								this.focusThrottle(this);
							}),0);
					} );
				
				}
		}
		return this._widgets[e.field][idx];
	},