function hideAddPresentationsDialog() 
{
    var modalPopupBehavior = $find("dialogAddPresentationsBehavior");
    modalPopupBehavior.hide();
}

 function showAddPresentationsDialog() 
{
    var modalPopupBehavior = $find("dialogAddPresentationsBehavior");
    modalPopupBehavior.show();  
}

function hideAddDynamicFoldersDialog() 
{
    var modalPopupBehavior = $find("dialogAddDynamicFoldersBehavior");
    modalPopupBehavior.hide();
}

 function showAddDynamicFoldersDialog() 
{
    var modalPopupBehavior = $find("dialogAddDynamicFoldersBehavior");
    modalPopupBehavior.show();  
}

function deleteFolder()
{
    return confirm('Are you sure you want to delete this folder?')
}

function NavigationControl_DisplayMessage(messageText) 
{
	navigationControl_messageContainer.style.display = '';

	if ( (navigationControl_messageLabel.innerHTML != null) && (navigationControl_messageLabel.innerHTML.length > 0) ) 
	{
		navigationControl_messageLabel.innerHTML += '<p>';
		navigationControl_messageLabel.innerHTML += messageText;
	} 
	else 
	{
		navigationControl_messageLabel.innerHTML = messageText;
	}
}

function NavigationControl_ClearMessage() 
{
	navigationControl_messageContainer.style.display = 'none';
	navigationControl_messageLabel.innerText = '';
}

 function ValidateChangesAndNavigate(location)
{
    if ( ValidateChanges() )
    {
        eval(location)
    }
}

function StartViewer(url)
{
	var playerWidth = 800;
	var playerHeight = 600;

	WindowHelper.CreatePopup(url,
		'Viewer', 
		playerWidth , 
		playerHeight , 
		false, 
		true);
}

// BEGINFILE Windows.js ----------------------------------------------------------------------------------->

function WindowHelper(){}
	WindowHelper.IsOpen = function (wnd)
	{
		if (!wnd)
		{
			return false;
		}
		if (wnd == null)
		{
			return false;
		}
		if (wnd.closed == true)
		{
			return false;
		}
		return true;
	}

	WindowHelper.CreatePopup=function(sUrl,sName,nWidth,nHeight,fScrollbars,fResizeable)
	{
		// extra offset for mac
		var offsetX = 0;
		var offsetY = 0;

		nWidth=Math.floor(nWidth) + offsetX;
		nHeight=Math.floor(nHeight) + offsetY;

		var sFeatures = "width=" + nWidth + ",height=" + nHeight;
	       
		if (fScrollbars)
		{
			sFeatures += ",scrollbars=yes";
		}
		else
		{
			sFeatures += ",scrollbars=no";
		}
	        
		if (fResizeable)
		{
			sFeatures += ",resizable=yes";
		}
		else
		{
			sFeatures += ",resizable=no";
		}
		
		sFeatures += ",status=no";
	        
		var popup = window.open(sUrl,sName,sFeatures);
//		this.Center(popup, nWidth, nHeight);
	    
		return popup;
	}

	WindowHelper.Center=function(wnd,nWidth,nHeight)
	{
		var posX = Math.round((screen.availWidth-nWidth)/2);
		var posY=  Math.round((screen.availHeight-nHeight)/2);
		wnd.moveTo(posX,posY);
	}

// ENDFILE Windows.js ------------------------------------------------------------------------------------->