var gbW3C = true;
var gbDebug = false;
if (!document.getElementsByTagName || !document.getElementById || !document.createElement)
	gbW3C = false;
function gfW3C_Failed() {
	alert('Warning: Some functionality has been disabled due to your aging web browser.');
}
function gfMissingObj(sObjName) { // v2.0.0 2006-07-20; like:; req:;
	if (gbDebug) {
		if (sObjName)
			alert('Warning: ' + sObjName + ' HTML object is missing, please allow this page to fully load.');
		else
			alert('Warning: An HTML object is missing, please allow this page to fully load.');
	} else
		return gbDebug;
}


/*--------------------------------*/
function loadPosterImage(imageURL) {
	if (gImageCapableBrowser) {
		document.imagePoster.src = imageURL;
		return false;
	}
	else {
		return true;
	}
}


function loadPoster2Image(imageURL) {
	if (gImageCapableBrowser) {
		document.imagePoster2.src = imageURL;
		return false;
	}
	else {
		return true;
	}
}



gImageCapableBrowser = canManipulateImages();

function canManipulateImages() {
	if (document.images)
		return true;
	else
		return false;
}

/*---------------------------------------*/

function fApplyImageBehaviour() { // v2.3.0 2006-11-01; like:; req:;
	if (!gbW3C) return gfW3C_Failed();
	
	sObjName = fApplyImageBehaviour.arguments[0];
	oNavs = document.getElementById(sObjName);
	if (!oNavs) return gfMissingObj(sObjName);
		
	var sOverStateSuffix = '-o';
	var aMouseOvers = new Array(); var aMouseOuts = new Array();
	var tImgs = oNavs.getElementsByTagName('img');

	var sArgs = fApplyImageBehaviour.arguments[0]; /* convert func args to string; IE 6.0 workaround = arguments.toString fails */
	for (var i = 1; i < fApplyImageBehaviour.arguments.length; i++)
		sArgs += ',' + fApplyImageBehaviour.arguments[i];

	for (var i=0;i<tImgs.length;i++) {
		tImg = tImgs[i];
		iPos = sArgs.indexOf(tImg.id.toString()); /* learn if current image is in argument list; -1 = img has ID; 0 = img missing ID */
		if ( (iPos == 0 || iPos == -1) && tImg.src.lastIndexOf(sOverStateSuffix + '.') == -1) { /* test if NOT delimiter/spacer image AND already selected */
			tImg.onmouseover = function() {this.src = aMouseOvers[this.number].src;};
			tImg.onmouseout = function() {this.src = aMouseOuts[this.number].src;};
			var suffix = tImg.src.substring(tImg.src.lastIndexOf('.'));
			aMouseOuts[i] = new Image();
			aMouseOuts[i].src = tImg.src;
			aMouseOvers[i] = new Image();
			aMouseOvers[i].src = tImg.src.substring(0,tImg.src.lastIndexOf('.')) + sOverStateSuffix + suffix;
			tImg.number = i;
		}
	}
}
function fApplyLinkBehaviour(sContainerName) { // v1.5.6 2004-10-10; like:fSafeAddOnload; req:fPopupFromTarget(v1.3);
	// sContainerName (optional)
	if (!document.getElementsByTagName) return;
	if (typeof(sContainerName) == 'string') // if page too large force links to behave
		var tAs = document.getElementById(sContainerName).getElementsByTagName('a');
	else // check enitre document
		var tAs = document.getElementsByTagName('a');

	for (i=0; i<tAs.length; i++) {
		tA = tAs[i];
		if (tA.target) {
			if (tA.target == 'fresh')
				tA.target = '_blank';
			else if (tA.target.indexOf('popup') != -1)
				tA.onclick = fPopupFromTarget;
			else if (tA.target == 'self')
				tA.target = '_self';
		} else if (tA.href) { // force PDF into new window, unless target set to self
			if (tA.href.indexOf('.pdf') != -1)
				tA.target = '_blank';
		}
	}
}
fSafeAddOnload(fApplyLinkBehaviour);

// upgrading from v1.1 subtract 20 from each target=popup cuz adding offset in function
// upgrading from v1.3 popup delimeter replace ',' to ':'.  Now XHTML Transitional valid
function fPopupFromTarget(oA) { // v1.5.1 2006-06-22; like:fApplyLinkBehaviour(v1.5); req:fOpenWin(v1.4);
	oSelf = (this.target) ? this : oA; // if onlick from fApplyLinkBehaviour use THIS else hardcoded onclick use oA (hardcoded as 'this')
	sWinHref = oSelf.href.toString();
	aWinArgs = oSelf.target.split(':');
	sWinTitle = (aWinArgs.length > 3) ? aWinArgs[3] : 'popup'; // window name = fourth argument

	aFilename = sWinHref.split('.');
	sFileType = aFilename[aFilename.length-1];

	if (sFileType == "jpg" || sFileType == "gif" || sFileType == "png") { // if image then no scrollbars
		bScrollBars = false; // hide scrollbars with image cuz each browser has different padding
		iImgWinEnlargeOffset = 20; // add this # to w,h cuz opening a win. without HTML (ie img), each browser adds margin/padding
	} else {
		bScrollBars = true;
		iImgWinEnlargeOffset = 0;
	}

	if (aWinArgs[4] == "false") // passed argument precedence over image file type
		bScrollBars = false;
	else if (aWinArgs[4] == "true") // passed argument precedence over image file type
		bScrollBars = true;

	fOpenWin(sWinHref,parseInt(aWinArgs[1])+iImgWinEnlargeOffset,parseInt(aWinArgs[2])+iImgWinEnlargeOffset,sWinTitle,bScrollBars) // href, width, height, name, scrollbars
	return false; // prevent href and target from HTML launching second window
}
function fOpenWin(sURL,iW,iH,sName,bScrollBars) { // v1.5.2 2005-10-14; like:; req:;
	iXPos=0, iYPos=15;
	if (window.innerWidth) { // NN4, NN6, O7
		iXPos = (window.innerWidth-iW)/2;
		iYPos = (window.innerHeight-iH)/2;
		iXPos+=window.screenX; iYPos+=window.screenY;
	} else {	// screen width (1 600) not used because I want centred in window on screen
		iXPos = (document.body.clientWidth-iW)/2;	// current window width (800) - new window width (400) / 2 = 200 on each side
		iBrowserHeight = (document.compatMode=="CSS1Compat")?document.documentElement.clientHeight:document.body.clientHeight;
		iYPos = (iBrowserHeight-iH)/2;
		iXPos+=window.screenLeft; iYPos+=window.screenTop;	// current position of window (400) + iXPos (200) = 600 is left pos
	} // left space (600) + new width (400) + right space (600) = screen res (1 600)

	if (typeof bScrollBars == 'boolean')
		bScrollBars = (bScrollBars==true)?'yes':'no';
	else
		bScrollBars = 'yes'; // not defined set to default

	sArgs='width=' +iW+ ',height=' +iH+ ',resizable=yes,scrollbars=' +bScrollBars+ ',status=yes,screenx=' +iXPos+ ',screeny=' +iYPos+ ',left=' +iXPos+ ',top=' +iYPos
	if (!sName) sName = 'popup';
	oWin=window.open(sURL,sName,sArgs);

	if (oWin != null) {
		if (oWin.opener == null) // give orphan child window this parent
			oWin.opener = self;
		oWin.focus()
	}
}
// Multiple window.onload functions and body onLoad="this_included_too()"
var aSafeOnload = new Array();
function fSafeAddOnload(fFunctionName) { // v2.0.2 2005-02-23; like:; req: fSafeOnload;
	if (window.addEventListener) { // W3C, Firefox
		window.addEventListener('load',fFunctionName,false)
	} else if (document.addEventListener) { // W3C, Opera
		document.addEventListener('load',fFunctionName,false)
	} else if (document.attachEvent) { // IE
		window.attachEvent('onload',fFunctionName)
	} else { // Mac IE 4.5 blows out on testing window.onload
		window.onload = fSafeOnload;
		aSafeOnload[aSafeOnload.length] = fFunctionName;
	}
}
function fSafeOnload() { // v1.01 2003-11-10; like: fSafeAddOnload; req:;
	for (var i=0;i<aSafeOnload.length;i++)
		aSafeOnload[i]();
}