var preloadgalleryFlag = false;

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;

// CHECK CLIENT BROWSER & PLATFORM
// original code from http://developer.apple.com/internet/_javascript/
//
// USAGE:	browserNaming();
// NOTES:	call it from within an external JS document
// RESULT:	browserNew = true/false
//			browserName = IE/NS/Opera
//			browserNameLong = IE5/etc
//			Macintosh = true/false
// WORKS:	everything

	var its;
	var browserName;
	var browserNameLong;
	var browserNew;
	var Macintosh = navigator.userAgent.indexOf('Mac')>0;

	function its() {
		var n = navigator;
		var ua = ' ' + n.userAgent.toLowerCase();
		var pl = n.platform.toLowerCase();
		var an = n.appName.toLowerCase();

		// browser version
		this.version = n.appVersion;
		this.nn = ua.indexOf('mozilla') > 0;

		// 'compatible' versions of mozilla aren't navigator
		if(ua.indexOf('compatible') > 0) {
			this.nn = false;
		}
		
		this.opera = ua.indexOf('opera') > 0;
		this.ie = ua.indexOf('msie') > 0;
		this.major = parseInt( this.version );
		this.minor = parseFloat( this.version );

		// platform
		this.mac = ua.indexOf('mac') > 0;
		this.win = ua.indexOf('win') > 0;

		// workaround for IE5 which reports itself as version 4.0
		if(this.ie) {
			if(ua.indexOf("msie 5") > 1) {
			var msieIndex = navigator.appVersion.indexOf("MSIE") + 5;
			this.major = parseFloat(navigator.appVersion.substr(msieIndex,3));
			}
		}

		return this;
	}

	function browserNaming() {
		its = new its();
		
		// is it a DOM-enabled browser?
		if (!document.getElementById) {
			browserNew = false;
		}
		else {
			browserNew = true;
		}

		// need the name, too
		if (its.opera) {
			browserName = "Opera";
		}
		else if (its.ie) {
			browserName = "IE";
		}
		else {
			browserName = "NS";
		}

		// and the number
		browserNameLong = browserName + its.major;
	
	}
	


// REMOVES THE LINK BORDER IN IE5/NS6
// original code by evil@chelu.ro
//
// USAGE:	getLinksToBlur();
// NOTES:	call it from within the preload function
// WORKS:	ie5+, ns6+, opera5+

	function unblur() {
		this.blur();
	}

	function getLinksToBlur() {
		if (!document.getElementById) return;
		links = document.getElementsByTagName("a");
		for(i=0; i<links.length; i++) {
			links[i].onfocus = unblur;
		}
		links = document.getElementsByTagName("area");
		for(i=0; i<links.length; i++) {
			links[i].onfocus = unblur;
		}
	}



// DOM / GET PROPERTY
// original code from http://www.alistapart.com/
//
// NOTES:	given an id and a property (as strings), return the given property of that id.
// WORKS:	ie5+, ns6+, opera5+

	function getIdProperty(id,property) {
		var styleObject = document.getElementById( id );
		if (styleObject != null) {
			styleObject = styleObject.style;
				if (styleObject[property]) {
					return styleObject[ property ];
				}
			}
		return (styleObject != null) ?
		styleObject[property] :
		null;
	}



// DOM / SET PROPERTY
// original code from http://www.alistapart.com/
//
// NOTES:	given an id and a property (as strings), set the given property of that id to the value provided.
// WORKS:	ie5+, ns6+, opera5+

	function setIdProperty(id,property,value) {
		var styleObject = document.getElementById( id );
		if (styleObject != null) {
			styleObject = styleObject.style;
			styleObject[ property ] = value;
		}
	}



// HIDE AND SHOW LAYERS (ON THE SAME PAGE)
// USAGE:	show('layername'); hide('layername');
// WORKS:	ie4+, ns4+, opera

	function hide(id) {
		if (browserNew) {
			setIdProperty(id,"visibility","hidden");
		}
		else {
			if (browserName == "NS") { document.layers[id].visibility = "hide"; }
			else { document.all[id].style.visibility = "hidden"; }
		}
	}

	function show(id) {
		if (browserNew) {
			setIdProperty(id,"visibility","visible");
		}
		else {
			if (browserName == "NS") { document.layers[id].visibility = "show"; }
			else { document.all[id].style.visibility = "visible"; }
		}
	}



function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}



function goURL(daURL) {
    // if the browser can do it, use replace to preserve back button
    if(javascriptVersion1_1) {
	window.location.replace(daURL);
    } else {
	window.location = daURL;
    }
    return;
}