ImgURL: /tmp/1268556631138361.png 
Scale: 250000000 
var mapW = 600 ; 
var mapH = 500 ; 
var refW = 126 ; 
var refH = 63 ; 
var minx_geo = -180; 
var maxy_geo = 150; 
var xdelta_geo = 360; 
var ydelta_geo = 300; 
var refBoxStr = '0,0,126,63' ;