mapserv controls

[Michael Hearne]

I have what should be an easy question (but apparently not for me):

When working with the mapserv cgi, how do you set the "zoom in,zoom out,
pan" radio button to default to something other than "Pan"?

Here's what I have in my initial HTML file:

<input type="hidden" name="layer" value="layer1">
<input type="hidden" name="layer" value="layer2">
<input type="hidden" name="zoomdir" value=1 [zoomdir_1_check]>
<input type="hidden" name="zoomsize" value=2>


This defaults to "Pan", where I intended it to come up as "Zoom In". 
Any suggestions?

-Mike
-- 
Michael G. Hearne     	  	email: Michael.Hearne at noaa.gov  
Coastal Remote Sensing  		phone: 843 740-1281             
TPMC/NOAA Coastal Services Center	fax:   843 740-1312       
2234 S. Hobson Ave.,    Charleston, SC 29407