ie2=(document.all)?true:false;
 nn2=(document.layers)?true:false;
 m1_on=new Image; m1_off=new Image;
 m1_on.src='gfx/m_firma.gif'; border='0'; m1_off.src='gfx/m_firma2.gif'; border='0';
 m2_on=new Image; m2_off=new Image;
 m2_on.src='gfx/m_oferta.gif'; border='0'; m2_off.src='gfx/m_oferta2.gif'; border='0';
 m3_on=new Image; m3_off=new Image;
 m3_on.src='gfx/m_salon.gif'; border='0'; m3_off.src='gfx/m_salon2.gif'; border='0';
 m4_on=new Image; m4_off=new Image;
 m4_on.src='gfx/m_projektowanie.gif'; border='0'; m4_off.src='gfx/m_projektowanie2.gif'; border='0';
 m5_on=new Image; m5_off=new Image;
 m5_on.src='gfx/m_kontakt.gif'; border='0'; m5_off.src='gfx/m_kontakt2.gif'; border='0';