actually, the following 2 lines:
PHP Code:
over_ent1 = newImage(/*URL*/'images/ent2.jpg');
over_ext1 = newImage(/*URL*/'images/ext2.jpg');
need to be changed to:
PHP Code:
over_ent1 = new Image('images/ent2.jpg');
over_ext1 = new Image('images/ext2.jpg');
notice the space between 'new' and 'Image' and also that the /*URL*/ has been removed.