//-------------
// Popup
//-------------

// Define popup window parameters
var popupDefaultParams = 'status=no,toolbar=no,menubar=no,location=no,directories=no';
var popupDefaultWidth = 540;
var popupDefaultHeight = 550;

// Open popup
function openPopup(url, name, width, height, resizable, scrollbars)
{
	var windowWidth = (width != null ? width : popupDefaultWidth);
	var windowHeight = (height != null ? height : popupDefaultHeight);
	var windowLeft = null;
	var windowTop = null;
	
	if (screen.availWidth != null)
	{
		windowLeft = (screen.availWidth - windowWidth) / 2;
		windowTop = (screen.availHeight - windowHeight) / 2;
	}
	   
  // Open the window    
  return window.open(
    url, 
    name, 
    popupDefaultParams +
    (windowLeft != null ? ',left=' + windowLeft : ',left=10') +
    (windowTop != null ? ',top=' + windowTop : ',top=10') +
    ',width=' + (windowWidth) + 
    ',height=' + (windowHeight) + 
    ',resizable=' + (resizable != null && resizable ? 'yes' : 'no') +
    ',scrollbars=' + (scrollbars != null && scrollbars ? 'yes' : 'no'));
}

// Open help popup
function openHelp(id)
{
    openPopup('helppopup.aspx?id=' + id, 'help', null, null, null, null);
}


//---------------------
// Cross window pasting
//---------------------
var pasteTimer = null;
var pasteFunction = null;

// Get a document selection
function getSelection(context)
{
    if (context.getSelection)
    {
        return context.getSelection();
    }
    else if (context.selection && document.selection.createRange) 
    {
       var range = context.selection.createRange();
       return range.text;           
    }
}

// Enable the cross window pasting
function enableCrossWindowPasting(pasteCallbackFunction, context)
{   
    if (!context)
        context = document;

    // Look for the paste input variable
    var src = document.getElementById("__PASTEIN");
    if (src)
    {
        src.value = getSelection(context);      
    }
    
    // Store callback function
    pasteFunction = pasteCallbackFunction;
      
    // Start the timer
    pasteTimer = setInterval('tryPaste()', 1000);
    
} 

// Disable the cross window pasting 
function disableCrossWindowPasting()
{
    // Stop interval
    if (pasteTimer)
    {
        clearInterval(pasteTimer);     
        pasteTimer = null;          
    }
    
    // Clear any paste value
    var elem = document.getElementById('__PASTEOUT');
    if (elem && elem.value.length > 0)
        elem.value = null;  // Clear        
}

// Check if paste is required
function tryPaste()
{
    // Look for the paste value
    var dest = document.getElementById('__PASTEOUT');
    if (dest && dest.value.length > 0)
    {         
       // Stop interval
       if (pasteTimer)
       {
            clearInterval(pasteTimer);         
            pasteTimer = null;          
       }

        // Paste
        if (pasteFunction)
        {
            eval(pasteFunction);
        }
            
       // Clear paste information
       dest.value = null;       
    }
}

// Copy a value from the opener __PASTEIN variable
function copyFromOpener(name)
{
    if (window.opener && !window.opener.closed)
    {
        var src = window.opener.document.getElementById('__PASTEIN'); 
        if(src && src.value.length > 0)
        {
            var dest = document.getElementById(name);
            if (dest)
            {
                dest.value = src.value;
            }
        }
    }    
}

// paste a value to the opener __PASTEOUT variable
function pasteToOpener(value)
{
    if (window.opener && !window.opener.closed)
    {
        var dest = window.opener.document.getElementById('__PASTEOUT'); 
        if(dest)
        {
            dest.value = value;
        }
    }    
}

// Helper to perform a paste to a FCKEditor
function pasteToFCKEditor(name)
{
   FCKeditorAPI.GetInstance(name).InsertHtml(document.getElementById('__PASTEOUT').value); 
}
 


//--------
// Cookies
//--------

// Imposta o legge il valore di una proprietà
// se value = null va in sola lettura
function manageCookieProperty(property, value)
{
  if (value == null)
  {
    // --> Read
    var re = new RegExp(property + "=[^;]+", "i"); //construct RE to search for target name/value pair
	  if (document.cookie.match(re)) //if cookie found
		  return document.cookie.match(re)[0].split("=")[1]; //return its value
	  return null;
    
    //// cookies are separated by semicolons
    //var cookies = document.cookie.split("; ");
    //for (var i=0; i < cookies.length; i++)
    //{
    //  // a name/value pair (a crumb) is separated by an equal sign
    //  var crumb = cookies[i].split("=");
    //  if (crumb[0] == property)
    //  {
    //    return crumb[1];
    //    break;
    //  }
    //}
    //return null;
  }
  else
  {
    // --> Write
    document.cookie = property + "=" + value;
    return value;
  }
}



//-----------------
// Blinking Anchors
//-----------------

var blinkingCount = 0;
var intervalID = 0;
var originalBG;


function CheckBlinkAnchor()
{
	if (document.location.hash != "")
	{
		elementName = document.location.hash.substring(1);
		var element = document.getElementById(elementName);
		if (element != null && element.parentNode != null)
		{
			originalBG = element.parentNode.style.backgroundColor;
			intervalID = setInterval("Blink('" + elementName + "')", 100);
		}
	}
}


function Blink(elementName)
{
	var element = document.getElementById(elementName).parentNode;
	if (element == null)
	{
		clearInterval(intervalID);
		return;
	}
	
	// Resetta dopo 5 lampeggi
	blinkingCount++;
	if (blinkingCount > 10)
	{
		element.style.backgroundColor = originalBG;			
		blinkingCount = 0;
		clearInterval(intervalID);
		return;
	}
				
	if (blinkingCount % 2 == 0)
		element.style.backgroundColor = originalBG;
	else 
		element.style.backgroundColor = "#efea29";				
}