add:   this.preVisible = this.visible; 
context: 	__preShow: function()	{		// disable the toolbar buttons		birtUtility.setButtonsDisabled ( "toolbar", true );				// disable the Navigation Bar buttons		birtUtility.setButtonsDisabled ( "navigationBar", true );	},
meta: 855	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/855/65ff6059458154d9df63efbcf69863f3bed09aa6/BirtParameterDialog.js/clean/viewer/org.eclipse.birt.report.viewer/birt/webcontent/birt/ajax/ui/dialog/BirtParameterDialog.js