/***********************************************************************

*

* setCookie -	Generic Set Cookie routine

*

* Input: sName	 -	Name of cookie to create

*	 sValue	 -	Value to assign to the cookie

*	 sExpire -	Cookie expiry date/time (optional)

*

* Returns: null

*

************************************************************************/



function setCookie(sName, sValue, sExpire) 

    {

    var sCookie = sName + "=" + escape(sValue) +"; path=/";	// construct the cookie

    if (sExpire)

    	{

    	sCookie += "; expires=" + sExpire.toGMTString();	// add expiry date if present

    	}

    document.cookie = sCookie;					// store the cookie

    return null;

    }



/***********************************************************************

*

* getCookie	-	Generic Get Cookie routine

*

* Input: sName	-	Name of cookie to retrieve

*

* Returns:		Requested cookie or null if not found

*

************************************************************************/



function getCookie(sName) 

    {

    var sCookiecrumbs = document.cookie.split("; "); 	// break cookie into crumbs array

    var sNextcrumb

    for (var i=0; i < sCookiecrumbs.length; i++) 

	{

	sNextcrumb = sCookiecrumbs[i].split("=");	// break into name and value

	if (sNextcrumb[0] == sName)			// if name matches

	    {

	     return unescape(sNextcrumb[1]); 		// return value

	    }

	}

	return null;

    }



/***********************************************************************

*

* saveReferrer -	Saves the referrer to a Cookie

*

* Input: 		nothing

*

* Returns:		null

*

************************************************************************/



function saveReferrer() 

    {

    var bSetCookie = false;

    if (parent.frames.length == 0)					// No FrameSet

		{

		bSetCookie = true;

		}

    else														// FrameSet in use

		{

		var bCatalogFrameSet = false;

		for (var nFrameId = parent.frames.length; nFrameId > 0; nFrameId--)

			{

			if (parent.frames[nFrameId - 1].name == 'CatalogBody')	// Catalog FrameSet used

				{

				bCatalogFrameSet = true;

				break;

				}

			}

		if (bCatalogFrameSet)							// Catalog FrameSet

			{

			if (window.name=='CatalogBody')			// and this is the CatalogBody frame

				{

				bSetCookie = true;

				}

			}

		else													// Not Catalog FrameSet

			{

			bSetCookie = true;

			}

		}

    if (bSetCookie)

		{

		var sUrl = document.URL;

		var nHashPos = sUrl.lastIndexOf("#");		// Look for URL anchor

		if (nHashPos > 0)									// if it exists

		    {

		    sUrl = sUrl.substring(0,nHashPos);		// then remove it

		    }

		setCookie("ACTINIC_REFERRER", sUrl);		// Emulates HTTP_REFERER

		}

	    return null;

	    }

    

saveReferrer();						// For v6 only, should be in templates for v7



/***********************************************************************

*

* CreateArray	creates an array with n elements

*

* Input: n	-	number of elements

*

* Returns:		the created array

*

************************************************************************/



function CreateArray(n)

	{

	this.length = n;

	for (var i=1; i <= n; i++)							// for all ns

		{

		this[i] = new Section();						// create a section structure

		}

	return this;											// return the created array

	}



/***********************************************************************

*

* Section	-	creates the section structure for raw section lists

*

* Input: 				nothing

*

* Returns:				nothing

************************************************************************/



function Section()

	{

	this.sURL = null;

	this.sName = null;

	this.sImage = null;

	this.nImageWidth = null;

	this.nImageHeight= null;

	this.nSectionId	= null;

	this.pChild = null;

	}

	

/***********************************************************************

*

* SwapImage			-	swaps an image to the alternative

*

* Input:	sName		-	name of the image

*

*			sAltImage	-	filename of the alternative image

*

************************************************************************/



function SwapImage(sName, sAltImage)

	{

	var nCount = 0;

	document.aSource = new Array;						// array for images

	if (document[sName] != null)						// if image name exists

		{

		document.aSource[nCount++] = document[sName];	// store image

		if(null == document[sName].sOldSrc)

			{

			document[sName].sOldSrc = document[sName].src;	// store image source

			}

		document[sName].src = sAltImage;				// change image source to alternative

		}

	}



/***********************************************************************

*

* RestoreImage		-	restores an image to the original

*

* Input: 				nothing

*

* Returns:				nothing

************************************************************************/



function RestoreImage()

	{

	var nCount, aSource = document.aSource;

	if (aSource != null)									// if array of images exists

		{

		for(nCount=0; nCount < aSource.length; nCount++)	// restore all images

			{

			if ((aSource[nCount] != null) &&

				(aSource[nCount].sOldSrc != null))	// if we stored something for this image

				{

				aSource[nCount].src = aSource[nCount].sOldSrc;	// restore the original image

				}

			}

		}

	}



/***********************************************************************

*

* PreloadImages		-	restores an image to the original

*

* Input: 				nothing

*

* Returns:				nothing

*

************************************************************************/



function PreloadImages()

	{

	if(document.images)

		{

		if(!document.Preloaded)							// preload array defined?

			{

			document.Preloaded = new Array();		// no, define it

			}

		var nCounter , nLen = document.Preloaded.length, saArguments = PreloadImages.arguments;

		for(nCounter = 0; nCounter < saArguments.length; nCounter++)	// iterate through arguments

			{

			document.Preloaded[nLen] = new Image;

			document.Preloaded[nLen++].src = saArguments[nCounter];

			}

   	}

	}

	

/***********************************************************************

*

* ShowPopUp		-	creates pop up window

*

* Input: sUrl		-	URL o page to display

*			nWidth	-	Width of window

*			nHeight	-	Height of window

*

* Returns:				nothing

*

************************************************************************/



function ShowPopUp(sUrl, nWidth, nHeight)

  	{  

	window.open(sUrl, 'ActPopup', 'width=' + nWidth + ',height=' + nHeight + ',scrollbars, resizable');

	}