function gif_over(img) {
	document.getElementById(img).src=document.getElementById(img).src.replace('.gif','r.gif');
};
function gif_out(img) {
	document.getElementById(img).src=document.getElementById(img).src.replace('r.gif','.gif');
};

function menu_active(bg) {
	if(bg!="menu8"){
		document.getElementById(bg).style.backgroundImage="url(/img/bg_leftmenu_a.gif)";
	}else{
		document.getElementById(bg).style.backgroundImage="url(/img/bg_leftmenu_ab.gif)";
	}
};
function menu_passive(bg) {
	document.getElementById(bg).style.backgroundImage="url(/img/bg_leftmenu_p.gif)";
};

function show_div (div1, div2) {
	document.getElementById(div1).style.display="block";
	document.getElementById(div2).style.display="none";
	if(div1=="lang2"){
		document.getElementById("chose_lang").style.display="block";
	}else{
		document.getElementById("chose_lang").style.display="none";
	}
}

function show_div2 (div1, div2) {
	document.getElementById(div1).style.display="block";
	document.getElementById(div2).style.display="none";
	if(div1=="hide_div"){
		document.getElementById("vn_div").style.display="block";
	}else{
		document.getElementById("vn_div").style.display="none";
	}
}

function show_div3 (div1, div2) {
	document.getElementById(div1).style.display="block";
	document.getElementById(div2).style.display="none";
	if(div1=="hide_div2"){
		document.getElementById("vn_div2").style.display="block";
	}else{
		document.getElementById("vn_div2").style.display="none";
	}
}

function setActiveMenu(num) {
   var dm, dl, dr, a;

   dm="menudivmain_"+num;
   dl="menudivleft_"+num;
   dr="menudivright_"+num;
   a="menuref_"+num;

   document.getElementById(dm).style.background="#477acf";
   document.getElementById(dl).style.backgroundImage="url(/img/menu/bg_act_left.gif)";
   document.getElementById(dl).style.backgroundPosition="left top";
   document.getElementById(dl).style.backgroundRepeat="no-repeat";
   document.getElementById(dr).style.backgroundImage="url(/img/menu/bg_act_right.gif)";
   document.getElementById(dr).style.backgroundPosition="right top";
   document.getElementById(dr).style.backgroundRepeat="no-repeat";

   document.getElementById(a).style.color="white";
   document.getElementById(a).style.textDecoration="none";

};