rem: ("contentWindow" in e.sourceObject.frame) && e.sourceObject.frame.contentWindow) 
add: getContentWindow(e.sourceObject.frame)) 
context: function cmdPrint(e){    if (("frame" in e.sourceObject) && e.sourceObject.frame &&        ("contentWindow" in e.sourceObject.frame) &&        e.sourceObject.frame.contentWindow)    {        e.sourceObject.frame.contentWindow.print();    }    else    {        display(MSG_ERR_UNABLE_TO_PRINT);    }}
meta: 1622	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1622/36289d26dc81ac8fd56e91582998915b27139195/commands.js/clean/xul/content/commands.js