Brad - thanks for this - I'll try adapting it to my iFrames. You're a smart cookie! Ross -- View this message in context: http://www.nabble.com/Ajax-Viewer-and-iFrames-in-ASP.NET---has-anyone-perfected-this--tf4548874s16610.html#a13014870 Sent from the MapGuide Users mailing list archive at Nabble.com.