Graphical button submit

[Spiro Philopoulos]

Hi. I'm using a graphical button for a submit form (<input type="image" 
name=""  etc. . . >) and was wondering what Cgicc call to use to check which 
submit button was pressed as the following code segment doesn't work:

form_iterator submit_button=cgi.getElement("submit_whatever");  
        
if ( submit_button != cgi.getElements().end() ) { 
. . .

>From what I understand the submited data for a image submit button woud be 
name.x=the_x_cord and name.y=the_y_cord
but I can't see which call I could use. Any info/help would be greatly 
appreciated. Thanks.