Is it possible to assign a colorprofile to a document in javascript?

Document presets only have a color mode RGB or CMYK… You will need to look at changing the app settings when creating a new file…

#target illustrator

var defCol = app.defaultColorSettings;

alert( unescape( defCol ) );

var csList = app.colorSettingsList;

alert( unescape( csList.join('\r') ) );

app.loadColorSettings( File(csList[10]) );

app.loadColorSettings( File(defCol) );