function tabgetir(aktif){
var toplam=3;
for(i=1;i<=toplam;i++){
	document.getElementById("tabbuton"+i).style.backgroundImage = "url('images/tab_button2.gif')";
}
	for(i=1;i<=toplam;i++){
		if(i==aktif){
			document.getElementById("TAB"+i).style.display = 'BLOCK';
			document.getElementById("tabbuton"+i).style.color = "#FFFFFF";
		}else{
			document.getElementById("TAB"+i).style.display = 'none';
			document.getElementById("tabbuton"+i).style.color = "#000000";
		}
	}
}
function tabback(aktif){
var toplam=2;
	document.getElementById("tabbuton"+aktif).style.backgroundImage = "url('images/tab_button.gif')";
}
function tabback2(aktif){
var toplam=2;
	document.getElementById("tabbuton"+aktif).style.backgroundImage = "url('images/tab_button2.gif')";
}