function setCookie(objname)
{
if(document.getElementById(objname).style.display == 'none')
{
BuildCookie(objname,'block',1)
}else{
BuildCookie(objname,'none',1)
}
}

function BuildCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue)
                 + ";expires="+expire.toGMTString();
}


// this function gets the cookie, if it exists
function GetCookie( name ) {
	
var start = document.cookie.indexOf( name + "=" );
var len = start + name.length + 1;
if ( ( !start ) &&
( name != document.cookie.substring( 0, name.length ) ) )
{
return null;
}
if ( start == -1 ) return null;
var end = document.cookie.indexOf( ";", len );
if ( end == -1 ) end = document.cookie.length;
return unescape( document.cookie.substring( len, end ) );
}

window.onload = function()
{
if(GetCookie('menu_keukens') == "block")
{
Effect.toggle('menu_keukens','slide');
}
if(GetCookie('sub_oversatink') == "block")
{
Effect.toggle('sub_oversatink','slide');
}
if(GetCookie('menu_actiesennieuws') == "block")
{
Effect.toggle('menu_actiesennieuws','slide');
}
//document.getElementById("picture").style.backgroundImage = 'url("/cms_media/randomplaatje' + get_random(25) + '.jpg")';

}

function get_random(num)
{
    var ranNum= Math.floor(Math.random()*(num));
    return ranNum+1;
}