addTab : function( goURL, goTitle, goParams ){
					var NewTab = Ext.getCmp('mainTabs').add({
						title       : goTitle,
						autoScroll	: true,
						bodyStyle	: 'padding:25px',
						closable	: true,
						iconCls     : 'x-status-valid',
						autoShow	: true,
						autoLoad: {
							url: goURL,
							params: goParams, // or a URL encoded string
							discardUrl: true,
							nocache: true,
							text: "Loading...",
							timeout: 60,
							scripts: false // Save time by avoiding RegExp execution.
							//callback: yourFunction,
							//scope: yourObject, //(optional scope)
						}
					}).doLayout();
					alert(NewTab);
					Ext.getCmp('mainTabs').setActiveTab( NewTab );