function popUp( fileName, windowName, urlParameters, windowWidth, windowHeight,windowScrolls,resizeable, menubar)
			{
				var LeftPosition = (screen.width) ? (screen.width-windowWidth)/2 : 0;
				var TopPosition = (screen.height) ? (screen.height-windowHeight)/2 : 0;
				
				if (urlParameters.length > 0)
				{
					urlParameters = '?' + urlParameters;
				}
				if (!windowScrolls) 
				{
					windowScrolls = 'yes';
				}
				var windowFormat = 'width=' + windowWidth + ',height=' + windowHeight  + ',scrollbars=' + windowScrolls + ',menubar=' + menubar + ',top='+TopPosition+',left='+LeftPosition + ',resizable=' + resizeable ;
				
				var newWindow    = window.open(fileName + urlParameters, windowName, windowFormat, 'Editor' );
				if ( newWindow.opener == null )
				{
					newWindow.opener = window; 
				}
			
			 	newWindow.focus();	
				
			}