function setCookie(c_name,value,expiredays)
{
var exdate=new Date()
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+ ((expiredays==null) ? "" : ";expires="+exdate);
}

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;
}

function menuonload() {
if (getCookie('cur_menu') == null) {setCookie('cur_menu','hosting_menu', 1);}
if (getCookie('cur_menu') != 'none') { document.getElementById(getCookie('cur_menu')).style.display='block';}

if (getCookie('cur_img') == null) {setCookie('cur_img','img_hosting_menu', 1)} 
if (getCookie('cur_img') != 'none') { document.getElementById(getCookie('cur_img')).src='images/menuup.gif';}
}

function showmenu( menu, img ) {
	if ( document.getElementById(menu).style.display=='block' ) {
		document.getElementById(menu).style.display='none';
		document.getElementById(img).src='images/menudown.gif';
		setCookie('cur_menu','none', 1);
		setCookie('cur_img','none', 1);
	} else {
	    if (getCookie('cur_menu') != 'none') { document.getElementById(getCookie('cur_menu')).style.display='none'; }
	    if (getCookie('cur_img') != 'none') { document.getElementById(getCookie('cur_img')).src='images/menudown.gif'; }
		document.getElementById(menu).style.display='block';
		document.getElementById(img).src='images/menuup.gif';
		setCookie('cur_menu',menu, 1);
		setCookie('cur_img',img, 1);		
	}
}