function createCookie(name,value,days)
{
	if (days)
	{
		var date = new Date();
//		date.setTime(date.getTime()+(days*24*60*60*1000));
		date.setTime(date.getTime()+(days*1*2*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

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 null;
}

function eraseCookie(name)
{
	createCookie(name,"",-1);
}

function ToggleMenu(menuName)
{
	var element = document.getElementById(menuName);
	if (element.style.display == 'none')
		element.style.display = 'block';
	else
		element.style.display = 'none';
	// save
	createCookie(menuName, element.style.display, 1);
}

function ToggleBackgroundImage(menuName)
{
   var element = GetBackgroundImageElement(menuName);
    
    if (element.style.backgroundImage == '')
    {
        element.style.backgroundImage = 'url(images/new.jpg)';
        createCookie('MenuBackground', 'true', 1);
    }
    else
   {
        element.style.backgroundImage = '';
        createCookie('MenuBackground', 'false', 1);
    }
} 

function GetBackgroundImageElement(menuName)
{
    var element = document.getElementById(menuName);
    return element.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement;
}

function CloseMenu(menuName)
{
    if (IsMenuVisible(menuName))
    {
        ToggleMenu(menuName);
        return true;
    }
    return false;
}

function IsMenuVisible(menuName)
{
	var element = document.getElementById(menuName);
	return element.style.display != 'none';
}

function readMenuPositions()
{
    //alert('readMenuPositions()');
    
	readMenuCookie('MenuAboutUs');
    readMenuCookie('MenuPress');
//	readMenuCookie('MenuAdvantages');
//	readMenuCookie('MenuTechnology');
//	readMenuCookie('MenuProd');
	
	
	if (readCookie('MenuBackground') == 'false')
	    ToggleBackgroundImage('MenuAboutUs');
     
 	if (readCookie('MenuBackground') == 'false')
 	    ToggleBackgroundImage('MenuPress');
	    
//	if (readCookie('MenuBackground') == 'false')
//	    ToggleBackgroundImage('MenuAdvantages');
	    
//	if (readCookie('MenuBackground') == 'false')
//	    ToggleBackgroundImage('MenuTechnology');
	    
//	if (readCookie('MenuBackground') == 'false')
//	    ToggleBackgroundImage('MenuProd');	                	    

	else
	{
		return true;
	}	    	    
}

function readMenuCookie(elementName)
{
	var stat = readCookie(elementName);
	if (stat) document.getElementById(elementName).style.display = stat;
}


function ClickAboutUs()
{
    ToggleMenu('MenuAboutUs');
      if (!CloseMenu('MenuPress')) ToggleBackgroundImage('MenuAboutUs');
//    if (!CloseMenu('MenuTechnology')) ToggleBackgroundImage('MenuAboutUs');
//    if (!CloseMenu('MenuAdvantages')) ToggleBackgroundImage('MenuAboutUs');
//    if (!CloseMenu('MenuProd')) ToggleBackgroundImage('MenuAboutUs');
}

function ClickPress()
{
    ToggleMenu('MenuPress');
    if (!CloseMenu('MenuAboutUs')) ToggleBackgroundImage('MenuPress');
//    if (!CloseMenu('MenuTechnology')) ToggleBackgroundImage('MenuPress');
//    if (!CloseMenu('MenuAdvantages')) ToggleBackgroundImage('MenuPress');
//    if (!CloseMenu('MenuProd')) ToggleBackgroundImage('MenuPress');
}

//function ClickAdvantages()
//{
//    ToggleMenu('MenuAdvantages');
//    if (!CloseMenu('MenuAboutUs')) ToggleBackgroundImage('MenuAdvantages');
//    if (!CloseMenu('MenuPress')) ToggleBackgroundImage('MenuAdvantages');
//    if (!CloseMenu('MenuTechnology')) ToggleBackgroundImage('MenuAdvantages');
//    if (!CloseMenu('MenuProd')) ToggleBackgroundImage('MenuAdvantages');
//}

//function ClickTechnology()
//{
//    ToggleMenu('MenuTechnology');
//    if (!CloseMenu('MenuAboutUs')) ToggleBackgroundImage('MenuTechnology');
//    if (!CloseMenu('MenuPress')) ToggleBackgroundImage('MenuTechnology');
//    if (!CloseMenu('MenuAdvantages')) ToggleBackgroundImage('MenuTechnology');
//    if (!CloseMenu('MenuProd')) ToggleBackgroundImage('MenuTechnology');
    
//}

//function ClickProd()
//{
//    ToggleMenu('MenuProd');
//    if (!CloseMenu('MenuAboutUs')) ToggleBackgroundImage('MenuProd');
//    if (!CloseMenu('MenuTechnology')) ToggleBackgroundImage('MenuProd');
//    if (!CloseMenu('MenuAdvantages')) ToggleBackgroundImage('MenuProd');
//    if (!CloseMenu('MenuPress')) ToggleBackgroundImage('MenuProd');
//    
//}