Can any one tell me how I can call one suitelet from another in SS1.0 . I am sure I have done this before but cannot get it to work anymore. If i do this

nlapiRequestURL(nlapiResolveURL("'SUITELET','customscript_mark_truck_shipped','customdeploy_mark_truck_shipped') + '&truck=' + cont");

it gives me an error : The URL must be a fully qualified HTTP/HTTPS URL. Essentially I want to call a backend suitelet from a UI suitelet.

nlapiResolveURL only gives you the partial url for the suitelet. You will need to add the domain, e.g. system.na1.netsuite.com