function displayMediaItems (itemPath) { winLeft=(screen.availWidth - 600)/2; winTop=(screen.availHeight - 400)/2; editionParams = 'location=yes,resizable =yes,menubar=yes,scrollbars=yes,status=yes,titlebar=yes,toolbar=yes,width=600,height=400,top='+winTop+',left='+winLeft; window.open (itemPath, '', editionParams); }