var currentSubMenuId ="";
if(!getCookie('currentSubMenuId')){
	showsubmenu('kat_1');
}
function showsubmenu(kat){
	try {
		main = document.getElementById(currentSubMenuId);
		divki = main.getElementsByTagName('div');
		for (var i = 0; i < divki.length; i++) { 
			divki[i].style.display='none';
		 }
	}catch(exception){
		//alert(exception.description);
	}
	currentSubMenuId = kat;
	
	document.cookie="currentSubMenuId="+kat;
	try {
		main = document.getElementById(kat);
		divki = main.getElementsByTagName('div');
		for (var i = 0; i < divki.length; i++) { 
			divki[i].style.display='block';
		 }
	}catch(exception){
		//alert(exception.description);
	}
	return false;
}

function initSubMenu(){
	currentSubMenuId = getCookie("currentSubMenuId");
	try {
		main = document.getElementById(currentSubMenuId);
		divki = main.getElementsByTagName('div');
		for (var i = 0; i < divki.length; i++) { 
			divki[i].style.display='block';
		 }
	}catch(exception){
		//alert(exception.description);
	}
	
}

function getCookie(c_name){
if (document.cookie.length>0){
  c_start=document.cookie.indexOf(c_name + "=")
  if (c_start!=-1){ 
	c_start=c_start + c_name.length+1 
	c_end=document.cookie.indexOf(";",c_start)
	if (c_end==-1) c_end=document.cookie.length
	return unescape(document.cookie.substring(c_start,c_end))
	} 
  }
return null
}