[OpenLayers-Users] Adding an attribute field to a vector layer

[Robert Sanson]

I am developing an application that allows a user to digitise crop areas. The areas created will then be uploaded to a SQL-server database via a geoJSON string sent to a ColdFusion service.
 
How can I specify one or more attribute fields?
 
I am using the following construct:
 
var crop_layer = new OpenLayers.Layer.Vector(); 
map.addLayer(crop_layer);
 
Many thanks,
 
Robert Sanson
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