function getCookie(key){
	    tmp = document.cookie+";";
	    tmp1 = tmp.indexOf(key,0);
	    if(tmp1 != -1){
	        tmp = tmp.substring(tmp1,tmp.length);
	        start = tmp.indexOf("=",0);
	        end = tmp.indexOf(";",start);
	        return(unescape(tmp.substring(start+1,end)));
	    }
	    return("");
	}

	function setAreaCookie(s) {
		document.cookie = "stafftoparea=" + s;
    var o = getOtherAreas(s);
		chgTab(s, o, 'images/staff/cmn/bg_areaSearchTab');
    changeInfos(parseInt(s.substr(s.length - 1)));
	}


	function getOtherAreas(s){
  	var o = '';
  	for(var i = 0; i < 5; i++){
    	if(s != 'area' + (i + 1)){
      	if(o.length > 0){
        	o = o + ',';
      	}
      	o = o + 'area' + (i + 1);
    	}
  	}
   	return o;
  }
	
	var selected_area = getCookie('stafftoparea');

  var other_areas = getOtherAreas(selected_area);

	var url = location.href;
	if (url.indexOf("#") > 0) {
  	var urls = url.split('#');
  	var tmp_selected_area = urls[urls.length - 1];
  	if (tmp_selected_area.length == 5 && tmp_selected_area.indexOf("area") == 0) {
  		var idx = parseInt(tmp_selected_area.charAt(4), 10);
  		if (!isNaN(idx) && idx > 0 && idx < 6) {
  			setAreaCookie(tmp_selected_area);
  		} else {
				setAreaCookie('area1');
			}
  	} else {
			setAreaCookie('area1');
		}
  } else {
		if(selected_area == ""){
    	selected_area = 'area1';
		}

		setAreaCookie(selected_area);
	}