function bg_change(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/menu_data_bg_h.jpg\') top no-repeat';
	}
	function bg_change_re(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/menu_data_bg.jpg\') top no-repeat';
	}
	function bg_change_right(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/right_menu_h.jpg\') top no-repeat';
	}
	function bg_change_re_right(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/right_menu.jpg\') top no-repeat';
	}
	function bg_change_right_sub(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/right_menu_h.jpg\') top no-repeat';
	}
	function bg_change_re_right_sub(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/sub_right_menu.jpg\') top no-repeat';
	}
	function bg_change_sub(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/submenu_bg_h.jpg\') top no-repeat';
	}
	function bg_change_sub_re(li_id){
		document.getElementById(li_id).style.background = 'url(\'http://metropoly.work.webdream.hu/public/images/submenu_bg.jpg\') top no-repeat';
	}
	function view(subli_id){
		document.getElementById(subli_id).style.display = 'block';
	}
	function noview(subli_id){
		document.getElementById(subli_id).style.display = 'none';
	}
	function MM_jumpMenu(targ,selObj,restore){ //v3.0
 		 eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
		  if (restore) selObj.selectedIndex=0;
	}
	function div_size(){
		var div_main = document.getElementById('data').offsetHeight;
		var div_left = document.getElementById('left').offsetHeight;
		var div_right = document.getElementById('right').offsetHeight;
		if (div_main > div_left & div_main > div_right){
			document.getElementById('left').style.height=div_main+"px";
			document.getElementById('right').style.height=div_main+"px";
		}
		if (div_left > div_main & div_left > div_right){
			document.getElementById('data').style.height=div_left+"px";
			document.getElementById('right').style.height=div_left+"px";
		}
		if (div_right > div_main & div_right > div_left){
			document.getElementById('data').style.height=div_main+"px";
			document.getElementById('left').style.height=div_left+"px";
		}
	}
	function arrow(mi){
		document.getElementById(mi).src = 'http://metropoly.work.webdream.hu/public/images/right_btn_up.jpg';
	}
	function arrow_re(mi){
		document.getElementById(mi).src = 'http://metropoly.work.webdream.hu/public/images/right_btn.jpg';
	}