jsHover = function() {
	var hEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0, len=hEls.length; i<len; i++) {
		hEls[i].onmouseover=function() { this.className+=" jshover"; }
		hEls[i].onmouseout=function() { this.className=this.className.replace(" jshover", ""); }
	}
}
if (window.attachEvent && navigator.userAgent.indexOf("Opera")==-1) window.attachEvent("onload", jsHover);

function change_shapka(){
    if (document.getElementById('shapka_regions').style.display=='none'){
        document.getElementById('shapka_regions').style.display='';
    } else {
        document.getElementById('shapka_regions').style.display='none';
    }
    if (document.getElementById('shapka_common').style.display=='none'){
        document.getElementById('shapka_common').style.display='';
    } else {
        document.getElementById('shapka_common').style.display='none';
    }
    if (document.getElementById('region_tab').className=='sel'){
        document.getElementById('region_tab').className='';
    } else {
        document.getElementById('region_tab').className='sel';
    }
    if (document.getElementById('select_region_tab').className=='sel'){
        document.getElementById('select_region_tab').className='';
    } else {
        document.getElementById('select_region_tab').className='sel';
    }
}    
    
function open_tread(var_item){ document.getElementById(var_item).style.display="";}
function close_tread(var_item){ document.getElementById(var_item).style.display="none";}
function select_form(what){
  if (what == "cat"){
    document.getElementById("cat_search").style.display="";
    document.getElementById("site_search").style.display="none";
    }
  else if (what == "site"){
    document.getElementById("cat_search").style.display="none";
    document.getElementById("site_search").style.display="";
    }
}