var timeout = 0;
var lefttimeout = 0;
var leftvisibleDiv = '';
var leftactiveLink = '';

var visibleDivs = new Array(2);
visibleDivs[0] = '';
visibleDivs[1] = '';

var activeLinks = new Array(2);
activeLinks[0] = '';
activeLinks[1] = '';

function ShowMenu(linkname, submenuname, level)
{
	if(timeout) clearTimeout(timeout);    
	DeactiveUnusedDivs(linkname, submenuname, level);    
   
	var link = document.getElementById(linkname);	
	if(link != undefined && link.className.indexOf('_active') == -1)
	{
		link.className = link.className + '_active';
	}
	
	var submenu = document.getElementById(submenuname);
	if(submenu != undefined)
	{
		submenu.style.display = 'block';		
	}
}

function Show(level)
{
	if(timeout) clearTimeout(timeout);
	
	if(level == 3)
	{       
		Deactivate();
		visibleDivs[0] = '';
		visibleDivs[1] = '';
		activeLinks[0] = '';
		activeLinks[1] = '';
	}
	else if(level == 4)
	{
		DeactivateLink(activeLinks[1]);		
		activeLinks[1] = '';
		DeactivateDiv(visibleDivs[1]);       
		visibleDivs[1] = '';        
	}   
}

function Hide()
{
	timeout = setTimeout("Deactivate();",500);
}

function Deactivate()
{
	for(i = 0; i < activeLinks.length; i++)
	{
		DeactivateLink(activeLinks[i]);
	}
	
	for(i = visibleDivs.length -1; i >= 0; i--)
	{
		DeactivateDiv(visibleDivs[i]);
	}
	
	DeactivateLink(leftactiveLink);
	DeactivateDiv(leftvisibleDiv);
}

function DeactivateLink(linkname)
{
	if(linkname != '')
	{
		var link = document.getElementById(linkname);	
		if(link != undefined)
		{
			if(link.className.indexOf('firstlevel') != -1)
			{
				link.className = 'firstlevel';
			}
			else if(link.className.indexOf('secondlevelchildren') != -1)
			{
				link.className = 'secondlevelchildren';
			}
			else if(link.className.indexOf('secondlevel') != -1)
			{
				link.className = 'secondlevel';
			}		
			else if(link.className.indexOf('thirdlevel') != -1)
			{
				link.className = 'thirdlevel';
			}
			else if(link.className.indexOf('leftnavigationlink') != -1)
			{
				link.className = 'leftnavigationlink';
			}
			else if(link.className.indexOf('leftthirdlevel') != -1)
			{
				link.className = 'leftthirdlevel';
			}
		}	
	}
}

function DeactivateDiv(submenuname)
{
	if(submenuname != '')
	{
		var div = document.getElementById(submenuname);
		if(div != undefined)
		{
			div.style.display = 'none';
		}
	}
}

function DeactiveUnusedDivs(linkname, submenuname, level)
{
	if(level == 3)
	{
		if(activeLinks[0] == linkname)
		{
			activeLinks[0] = '';
		}
		if(visibleDivs[0] == submenuname)
		{
			visibleDivs[0] = '';
		} 
			   
		Deactivate();
		
		activeLinks[0] = linkname;
		activeLinks[1] = '';
		visibleDivs[0] = submenuname;
		visibleDivs[1] = '';        
	}
	else if(level == 4)
	{        
		var parentlink = activeLinks[0];
		activeLinks[0] = '';
		if(activeLinks[1] == linkname)
		{
			activeLinks[1] = '';
		}  
		var parentdiv = visibleDivs[0];
		visibleDivs[0] = '';
		if(visibleDivs[1] == submenuname)
		{
			visibleDivs[1] = '';
		}     
			 
		Deactivate(); 
			   
		activeLinks[0] = parentlink;
		activeLinks[1] = linkname;
		visibleDivs[0] = parentdiv;
		visibleDivs[1] = submenuname;
	}    
}


function CalculateLeftPosition(e, submenu)
{
	if(submenu != undefined)
	{
		var posx = 0;
		if(e)
		{
			if (e.pageX)
			{
				posx = e.pageX;
			}
			else if (e.clientX)
			{
				posx = e.clientX;
			}
		}
		else
		{
			posx = window.event.x;
		}
		
		posx = document.body.clientWidth - posx;
		if(posx < 170)
		{
			submenu.style.left = -179; 
		}
		else
		{
		   submenu.style.left = 176; 
		}
	}
}

function ShowLeftMenu(linkname, submenuname)
{
	if(lefttimeout) clearTimeout(lefttimeout); 
	if(leftvisibleDiv != submenuname)
	{   
		DeactivateDiv(leftvisibleDiv);
		leftvisibleDiv = submenuname;
	}
	if(leftactiveLink != linkname)
	{
		DeactivateLink(leftactiveLink);
		leftactiveLink = linkname;
	}    
   
	var link = document.getElementById(linkname);	
	if(link != undefined && link.className.indexOf('_active') == -1)
	{
		link.className = link.className + '_active';
	}
	
	var submenu = document.getElementById(submenuname);
	if(submenu != undefined)
	{
		submenu.style.display = 'block';
	}
}

function ShowLeft(level)
{
	if(lefttimeout) clearTimeout(lefttimeout);
	if(level == 4)
	{
		Deactivate();
	}
}

function HideLeft()
{
	lefttimeout = setTimeout("Deactivate();",500);
}