function setcookiemin(names,values,time){
  var expireDate = new Date();
          expireDate.setTime(expireDate.getTime()+time*60000);
document.cookie =  names+"=" + values + "; expires=" + expireDate.toGMTString() + ";"; 
}

function setcookieday(names,values,time){
  var expireDate = new Date();
          expireDate.setDate(expireDate.getDate()+time);
document.cookie =  names+"=" + values + "; expires=" + expireDate.toGMTString() + ";"; 
}



Brname=navigator.appName;
Brver=parseFloat(navigator.appVersion);
changes=false;
if(Brname=="Netscape" && Brver >= 3) changes= true;
if(Brname=="Microsoft Internet Explorer" && Brver >= 4) changes= true;
this.ver=navigator.appVersion;
ver5 =document.getElementById?1:0;
ie =(this.ver.indexOf("MSIE")>-1 )?1:0;

 


function hide_all() { /// hide all layers ///

  for (i in layersNum) {
    if (ver5) { document.getElementById(layersNum[i]).style.visibility= "hidden";}
    else { 
      if (ie) { document.all[layersNum[i]].style.visibility = "hidden";	}
      else    { document.layers[layersNum[i]].visibility = "hide"; }
    }
  }
}

function ShowMenu(id) {
  y_time=false;
  if (ver5) {
	document.getElementById(id).style.visibility= "visible";
  }
  else { 
    if (ie){
	document.all[id].style.visibility = "visible";		}
    else {
	document.layers[id].visibility = "show"; 
    }
  }
}