function firsatguncelle(deger) {
document.getElementById('anasayfa-hf-tab1').style.display='none';
document.getElementById('anasayfa-hf-tab2').style.display='none';
document.getElementById('anasayfa-hf-tab3').style.display='none';
document.getElementById('anasayfa-hf-tab4').style.display='none';
document.getElementById('anasayfa-hf-tab5').style.display='none';
document.getElementById('anasayfa-hf-tab6').style.display='none';
document.getElementById('anasayfa-hf-tab7').style.display='none';
document.getElementById('anasayfa-hf-sagbuton1').style.backgroundImage="";
document.getElementById('anasayfa-hf-sagbuton2').style.backgroundImage="";
document.getElementById('anasayfa-hf-sagbuton3').style.backgroundImage="";
document.getElementById('anasayfa-hf-sagbuton4').style.backgroundImage="";
document.getElementById('anasayfa-hf-sagbuton5').style.backgroundImage="";
document.getElementById('anasayfa-hf-sagbuton6').style.backgroundImage="";
document.getElementById('anasayfa-hf-sagbuton7').style.backgroundImage="";

document.getElementById('anasayfa-hf-tab'+deger).style.display='block';
document.getElementById('anasayfa-hf-sagbuton'+deger).style.backgroundImage="url(nesneler/anasayfa-hf-sagbutonap.png)";


};