var visi;

function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    var ck = name+"="+value+expires+"; path=/";
    document.cookie = ck;
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i<ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return "";
}


        function setSelected(selectObj, optvalue)
        {
        if (typeof selectObj=="undefined") return;
        if ( selectObj.type == "text" )
        	{
            selectObj.value=optvalue;
        	}
        else
        	{
            for (var i=0; i<selectObj.options.length; i++)
            { if(selectObj.options[i].value == optvalue) { selectObj.options[i].selected = true; return true; } } return false;
        }
		}

function switchMenu(obj) {
	var el = document.getElementById('div'+obj);
	if (el ==null)  return false;

	if ( el.style.display != "none" ) {
		el.style.display = 'none';
		document.getElementById('plus'+obj).style.display = '';
		document.getElementById('minus'+obj).style.display = 'none';
	}
	else {
		if (visi!=null)
		{
//		visi.style.display = 'none';
		}
		el.style.display = '';
		document.getElementById('plus'+obj).style.display = 'none';
		document.getElementById('minus'+obj).style.display = '';
		visi=el;
	createCookie("switchMenu",obj,1);
	return true;
	}
}