I tried i though javascript this isn't the best way. Your image has to be loaded in your browser first and then get the height/width.
This is a bit tricky.
Better use a asp script
this one works it just needs a little tweaking.
http://www.4guysfromrolla.com/webtec...imgsz.asp.html
if you can't get this to work there are tons of scripts to find using google.
good luck
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