function userEventBeforeLoad(type, form, request){
 
 
 
    // Load file - can be also used nlapiLoadFile('fileId') syntax
 
    var file = nlapiLoadFile('Images/Desert.jpg');
 
 
 
    var url = "https://system.netsuite.com" + file.getURL();
 
 
    nlapiSetFieldValue('hyperlinkFieldId', url);
 
 
 
}