function change_img(obj,src){obj.src=src;}function change_icon(obj,src){obj.src=src;}function n_hover(obj,name){change_img(obj,n_dir+name+'_h.gif');}function n_normal(obj,name){if(name !=module_name)	change_img(obj,n_dir+name+'.gif');}function sn_hover(obj,name){if(name !=section && name !=subsection && name !=(section+'_'+subsection))	change_img(obj,sn_dir+name+'.gif');}function sn_normal(obj,name){if(name !=section && name !=subsection && name !=(section+'_'+subsection))	change_img(obj,sn_dir+name+'_h.gif');}function ft_n_hover(obj,name){if(name !=module_name)	change_img(obj,ft_n_dir+name+'_h.gif');}function ft_n_normal(obj,name){if(name !=module_name)	change_img(obj,ft_n_dir+name+'.gif');}function icon_h(obj,name){if(name !=part) change_img(obj,vehicle_img_dir+'icon_'+name+'.png');}function icon_n(obj,name){if(name !=part) change_img(obj,vehicle_img_dir+'icon_'+name+'_h.png');}function icon2_h(obj,name){if(name !=part) change_img(obj,img_dir_this+'icon_'+name+'.png');}function icon2_n(obj,name){if(name !=part) change_img(obj,img_dir_this+'icon_'+name+'_h.png');}