You shouldn't specify numbers as parameters like that, in fact that's why it doesn't work.
Script compiler output for Scratch (in level jerretnpc.nw at pos (30, 30)):
error: unexpected symbol 0 at line 9: function Shop_TextList1.onSelect(0,Bombe,1) {
Try replacing the onSelect function with this:
PHP Code:
function Shop_TextList1.onSelect(entryid, entrytext, entryindex) {
Shop_MultiLine1.setText(entrytext);
}