/*
 +-------------------------------------------------------------------+
 |                       J S - M E N U   (v1.2)                      |
 |                                                                   |
 | Copyright Gerd Tentler                http://www.gerd-tentler.de  |
 | Created: Jul. 19, 2002                Last modified: May 25, 2005 |
 +-------------------------------------------------------------------+
 | This program may be used and hosted free of charge by anyone for  |
 | personal purpose as long as this copyright notice remains intact. |
 |                                                                   |
 | Obtain permission before selling the code for this program or     |
 | hosting this software on a commercial website or redistributing   |
 | this software over the Internet or in any other medium. In all    |
 | cases copyright must remain intact.                               |
 +-------------------------------------------------------------------+

 ======================================================================================================
 This script was tested with the following systems and browsers:

 - Windows XP: IE 6, NN 4, NN 7, Opera 7, Firefox 1
 - Mac OS X:   IE 5, Safari 1

 If you use another browser or system, this script may not work for you - sorry.
 ======================================================================================================
*/

var DOM = document.getElementById;
var IE4 = document.all;
var NN4 = document.layers;
var GKO = (navigator.userAgent.indexOf('Gecko') != -1) ? true : false;

var mObj = new Array();

function MENU(style) 
{
	//----------------------------------------------------------------------------------------------------
	// Configuration
	//----------------------------------------------------------------------------------------------------

	this.style = style ? style : "left";      		// menu style (top or left)
	this.floatMenu = true;                    		// floating menu (true or false)*

	this.fadeInSpeed = 0;                    		// fade-in speed (0 - 30; 0 = no fading)
	this.fadeOutSpeed = 0;                   		// fade-out speed (0 - 30; 0 = no fading)
	this.fadeOutDelay = 0;                  		// fade-out delay (1/1000 seconds)

	this.imgBlank = HomeRef + "pix/blank.gif";				// path to blank image
	this.imgArrow = HomeRef + "pix/arrow.gif";				// path to arrow image
	this.imgArrowWidth = 7;                   		// arrow image width (pixels)

	// main menu configuration:

	this.mainTop = 0;                         		// top position (pixels)
	this.mainLeft = 0;                        		// left position (pixels)
	this.mainBGColor = new Array();
	this.mainBGColor[0] = HomeRef + "pix/waterbkgd.jpg";	// background color OR background image
	this.mainWhichBGColor = 0;

	this.mainBorderWidth = 10;                		// border width (pixels)
	this.mainArrows = true;                   		// show sub menu arrows (true or false)
	this.mainOpacity = 100;                   		// opacity (0 - 100)**

	this.mainItemWidth = 120;                 		// item width (pixels)
	this.mainItemColor = "#0066FF";           		// item color
	this.mainItemHilight = "#80A0C0";         		// item hilight color
	this.mainItemFont = "Arial, Helvetica";   		// font family (CSS-spec)
	this.mainItemFontColor = "black";         		// font color
	this.mainItemFontSize = 12;               		// font size (pixels)
	this.mainItemAlign = "left";            		// text align (left / center / right)
	this.mainItemPadding = 1;                 		// text padding (pixels)
	this.mainItemSpacer = 10;                 		// space between items (pixels)
	this.mainItem3D = 2;                      		// 3D border (pixels); NN4: not supported

	// sub menu(s) configuration:

	this.subBGColor = HomeRef + "pix/waterbkgd.jpg";		// background color OR background image
	this.subBorderWidth = 2;                  		// border width (pixels)
	this.subArrows = true;                    		// show sub menu arrows (true or false)
	this.subOpacity = 100;                     		// opacity (0 - 100)**
	this.subOffsetLeft = 10;                  		// left offset (pixels)
	
	this.subItemWidth = 150;                  		// item width (pixels)
	this.subItemColor = "#0066FF";            		// item color
	this.subItemHilight = "#C0D8F0";          		// item hilight color
	this.subItemFont = "Arial, Helvetica";    		// font family (CSS-spec)
	this.subItemFontColor = "black";        		// font color
	this.subItemFontSize = 12;                		// font size (pixels)
	this.subItemAlign = "left";               		// text align (left / center / right)
	this.subItemPadding = 0;                  		// text padding (pixels)
	this.subItemSpacer = 4;                   		// space between items (pixels)
	this.subItem3D = 2;                       		// 3D border (pixels); NN4: not supported

	// *  With Safari 1 (Mac OS X) performance was poor, i.e. floating speed was slow. With IE 5 (Mac OS X)
	//    floating didn't work properly.
	//
	// ** Opacity was successfully tested only on Windows XP with IE 6, NN 7 and Firefox 1; NN 7 showed
	//    different results, though. It seems that other browsers and systems do not support this feature,
	//    i.e. opacity will always be 100 percent.

	//----------------------------------------------------------------------------------------------------
	// Functions
	//----------------------------------------------------------------------------------------------------

	this.mOver = false;
	this.mNr = this.iv = this.timer = 0;
	this.sections = new Array();
	this.items = new Array();

	this.entry = function(level, height, text, url, onClick, target) 
	{
		var nr = this.items.length;
		var parent = nr - 1;
		this.items[nr] = new makeItem(nr, level, height, text, url, onClick, target);
		if (parent >= 0) 
		{
			if (level == this.items[parent].level + 1) 
				this.items[nr].parent = parent;
			else if (level == this.items[parent].level) 
				this.items[nr].parent = this.items[parent].parent;
			else if (level < this.items[parent].level) 
			{
				for (var i = parent; i >= 0; i--) 
				{
					if (this.items[i].level == level) 
					{
						this.items[nr].parent = this.items[i].parent;
						break;
					}
				}
			}
		}
	}

	this.getObj = function(id, cont) 
	{
		var obj;
		if (DOM) 
			obj = document.getElementById(id).style;
		else if (IE4) 
			obj = document.all[id].style;
		else if (NN4) 
			obj = cont ? document.layers[cont].document.layers[id] : document.layers[id];
		return obj;
	}

	this.getScrTop = function() 
	{
		var scrTop = 0;
		if (document.body && document.body.scrollTop) 
			scrTop = document.body.scrollTop;
		else if (window.pageYOffset) 
			scrTop = window.pageYOffset;
		return scrTop;
	}

	this.setOpacity = function(nr, opacity) 
	{
		if (!NN4) 
		{
			var m = 'section' + this.mNr + '_' + nr;
			var obj = 0;
			if (DOM) 
				obj = document.getElementById(m);
			else if (IE4) 
				obj = document.all[m];
			if (obj) 
			{
				obj.style.filter = 'alpha(opacity=' + opacity + ')';
				obj.style.mozOpacity = '.1';
				if (obj.filters) 
					obj.filters.alpha.opacity = opacity;
				if (!IE4 && obj.style.setProperty) 
					obj.style.setProperty('-moz-opacity', opacity / 100, '');
			}
		}
	}

	this.fadeIn = function(nr) 
	{
		if (this.sections[nr].active) 
		{
			var maxOp = (this.items[this.sections[nr].nr].level < 2) ? this.mainOpacity : this.subOpacity;
			if (this.fadeInSpeed && this.sections[nr].opacity < maxOp) 
			{
				this.sections[nr].opacity += this.fadeInSpeed;
				if (this.sections[nr].opacity > maxOp) 
					this.sections[nr].opacity = maxOp;
				this.setOpacity(nr, this.sections[nr].opacity);
				if (this.sections[nr].timer) 
					clearTimeout(this.sections[nr].timer);
				this.sections[nr].timer = setTimeout('mObj[' + this.mNr + '].fadeIn(' + nr + ')', 1);
			}
			else 
			{
				this.sections[nr].opacity = maxOp;
				this.setOpacity(nr, maxOp);
			}
		}
	}

	this.fadeOut = function(nr) 
	{
		if (this.fadeOutSpeed && this.sections[nr].opacity > 0) 
		{
			this.sections[nr].opacity -= this.fadeOutSpeed;
			if (this.sections[nr].opacity < 0) 
				this.sections[nr].opacity = 0;
			this.setOpacity(nr, this.sections[nr].opacity);
			if (this.sections[nr].timer) 
				clearTimeout(this.sections[nr].timer);
			this.sections[nr].timer = setTimeout('mObj[' + this.mNr + '].fadeOut(' + nr + ')', 1);
		}
		else 
		{
			var obj = this.getObj('section' + this.mNr + '_' + nr);
			obj.visibility = NN4 ? 'hide' : 'hidden';
			this.sections[nr].opacity = 0;
		}
	}

	this.showMenu = function(nr) 
	{
		var obj = this.getObj('section' + this.mNr + '_' + nr);
		if (!this.sections[nr].active) 
		{
			if (this.floatMenu) 
				this.sections[nr].y = this.getScrTop() + this.sections[nr].topY;
			if (IE4) 
				obj.pixelTop = this.sections[nr].y;
			else 
				obj.top = this.sections[nr].y + (DOM ? 'px' : '');
			obj.visibility = NN4 ? 'show' : 'visible';
			this.sections[nr].active = true;
			this.fadeIn(nr);
		}
	}

	this.hideMenu = function(nr) 
	{
		var obj = this.getObj('section' + this.mNr + '_' + nr);
		if (this.sections[nr].active) 
		{
			this.sections[nr].active = false;
			this.fadeOut(nr);
		}
	}

	this.hilight = function(section, item, color) 
	{
		var obj = this.getObj('item' + this.mNr + '_' + item, 'section' + this.mNr + '_' + section);
		if (NN4) 
			obj.bgColor = color;
		else 
			obj.backgroundColor = color;
		if (color == this.subItemColor || color == this.mainItemColor) 
			this.mOver = false;
		else 
			this.mOver = true;
	}

	this.getMenu = function(item, section) 
	{
		if (this.sections[section].active) 
		{
			for (var i = section+1; i < this.sections.length; i++) 
			{
				if (this.sections[i].nr == item) 
				{
					if (!this.sections[i].active) 
						this.showMenu(i);
				}
				else if (this.sections[i].active) 
					this.hideMenu(i);
			}
		}
	}

	this.hideSubs = function(start) 
	{
		if (!this.mOver) 
			for (var i = start; i < this.sections.length; i++) 
			{
				if (this.sections[i].active) 
					this.hideMenu(i);
			}
		
		this.timer = 0;
	}

	this.jumpURL = function(url) 
	{
		if (url) 
			document.location.href = url;
	}

	this.checkIt = function() 
	{
		var active = false;
		var i;
		if (this.floatMenu) 
			for (i = 0; i < this.sections.length; i++) 
			{
				if (this.sections[i].active) 
					this.floatIt(i, this.sections[i].topY);
			}

		if (!this.mOver && !this.timer) 
		{
			for (i = 0; i < this.sections.length && !active; i++) 
			{
				if (this.sections[i].active) 
					active = true;
			}
			if (active) 
			{
				if (this.fadeOutDelay) 
					this.timer = setTimeout('mObj[' + this.mNr + '].hideSubs(1)', this.fadeOutDelay);
				else 
					this.hideSubs(1);
			}
		}
	}

	this.floatIt = function(nr, topY) 
	{
		var obj = this.getObj('section' + this.mNr + '_' + nr);

		if (obj.visibility == 'visible' || obj.visibility == 'show') 
		{
			var scrTop = this.getScrTop() + topY;
			var elmTop = IE4 ? obj.pixelTop : parseInt(obj.top);
			if (elmTop != scrTop) 
				this.smoothIt(obj, nr, scrTop);
		}
	}

	this.smoothIt = function(obj, nr, scrTop) 
	{
		if (scrTop != this.sections[nr].y) 
		{
			var percent = .1 * (scrTop - this.sections[nr].y);
			if (percent > 0) 
				percent = Math.ceil(percent);
			else 
				percent = Math.floor(percent);
			this.sections[nr].y += percent;
			if (IE4) 
				obj.pixelTop = this.sections[nr].y;
			else if (NN4 || DOM) 
				obj.top = this.sections[nr].y + (DOM ? 'px' : '');
		}
	}

	this.buildItems = function(parent, section) 
	{
		var arrows, link, img, color, itemColor, itemHilight, itemAlign, left;
		var width, height, border, spacer, itemPadding, item3D, topY, clsItem, j;

		for (var i = cnt = 0; i < this.items.length; i++) 
		{
			if (this.items[i].parent == parent) 
			{
				if (this.items[i].level < 2) 
				{
					border = this.mainBorderWidth;
					color = this.mainBGColor[this.mainWhichBGColor];
					spacer = this.mainItemSpacer;
					arrows = this.mainArrows;
					itemColor = this.mainItemColor;
					itemHilight = this.mainItemHilight;
					itemAlign = this.mainItemAlign;
					itemPadding = this.mainItemPadding;
					item3D = this.mainItem3D;
					clsItem = 'clsMainItem' + this.mNr;
					width = this.mainItemWidth + itemPadding*2;
					if (this.style == 'top') 
						left = border + (width + item3D*2 + spacer) * cnt++;
					else 
						left = border;
				}
				else 
				{
					border = this.subBorderWidth;
					color = this.subBGColor;
					spacer = this.subItemSpacer;
					arrows = this.subArrows;
					itemColor = this.subItemColor;
					itemHilight = this.subItemHilight;
					itemAlign = this.subItemAlign;
					itemPadding = this.subItemPadding;
					item3D = this.subItem3D;
					clsItem = 'clsSubItem' + this.mNr;
					width = this.subItemWidth + itemPadding*2;
					left = border;
				}
				height = this.items[i].height + itemPadding*2;

				if (!topY) 
					topY = border;
				
				if (this.items[i].target)
					link = this.items[i].url;
				else	
					link = "javascript:mObj[" + this.mNr + "].jumpURL('" + (this.items[i].url ? this.items[i].url : '') + "')";
				
				if (i+1 < this.items.length && this.items[i+1].level > this.items[i].level) 
					img = this.imgArrow;
				else 
					img = '';

				for (j = 0; j < this.sections.length; j++) 
				{
					if (this.sections[j].nr == i+1) 
					{
						this.sections[j].topY = this.sections[section].topY + topY;
						this.sections[j].y = this.sections[j].topY;
					}
				}

				if (IE4 || DOM) 
					document.write('<div id="item' + this.mNr + '_' + i + '" style="position:absolute' +
							'; top:' + topY + 'px' +
							'; left:' + left + 'px' +
							'; width:' + (GKO ? width : width + item3D*2) + 'px' +
							'; height:' + (GKO ? height : height + item3D*2) + 'px' +
							(itemColor ? '; background-color:' + itemColor : '') +
							(item3D ? '; border:' + item3D + 'px outset white' : '') +
							'; z-index:1">');
				else if (NN4) 
					document.write('<layer id="item' + this.mNr + '_' + i + '"' +
							' top=' + topY +
							' left=' + left +
							' width=' + (GKO ? width : width + item3D*2) +
							' height=' + (GKO ? height : height + item3D*2) +
							(itemColor ? ' bgcolor=' + itemColor : '') +
							' z-index=1>');
				document.write('<table border=0 cellspacing=0 cellpadding=' + itemPadding +
						' width=' + width + ' height=' + height + '><tr>' +
						'<td class="' + clsItem + '" align="' + itemAlign + '">' +
						this.items[i].text + '</td>' +
						(img ? '<td width=' + this.imgArrowWidth + ' align=right><img src="' + img + '" width=' + this.imgArrowWidth + '></td>' : '') +
						'</tr></table>');
				if (IE4 || DOM) 
					document.write('</div>');
				else if (NN4) 
					document.write('</layer>');

				if (IE4 || DOM) 
					document.write('<div style="position:absolute' +
							'; top:' + topY + 'px' +
							'; left:' + left + 'px' +
							'; z-index:2">');
				else if (NN4) document.write('<layer' +
							' top=' + topY +
							' left=' + left +
							' z-index=2>');
				document.write('<a href="' + link + '" ' +
						(this.items[i].target ? 'target="' + this.items[i].target + '" ' : '') + 
						'onMouseOver="mObj[' + this.mNr + '].hilight(' + section + ', ' + i + ', \'' + itemHilight + '\'); ' +
						'mObj[' + this.mNr + '].getMenu(' + (i+1) + ', ' + section + '); ' +
						'window.status=\'' + this.items[i].url + '\'; return true" ' +
						'onMouseOut="mObj[' + this.mNr + '].hilight(' + section + ', ' + i + ', \'' + itemColor + '\'); ' +
						'window.status=\'\'" ' + (this.items[i].onClick ? 'onClick="' + this.items[i].onClick + '" ' : '') +
						'onFocus="if (this.blur) this.blur()">' +
						'<img src="' + this.imgBlank + '" border=0 width=' + (width + item3D*2) + ' height=' + (height + item3D*2) + '></a>');
				if (IE4 || DOM) 
					document.write('</div>');
				else if (NN4) 
					document.write('</layer>');

				if (this.items[i].level > 1 || this.style != 'top') 
					topY += height + item3D*2 + spacer;
			}
		}
	}

	this.buildSections = function() 
	{
		document.write('<style> ' +
				'.clsMainItem' + this.mNr + ' { color:' + this.mainItemFontColor +
				'; font-family:' + this.mainItemFont +
				'; font-size:' + this.mainItemFontSize + 'px; } ' +
				'.clsSubItem' + this.mNr + ' { color:' + this.subItemFontColor +
				'; font-family:' + this.subItemFont +
				'; font-size:' + this.subItemFontSize + 'px; } ' +
				'</style>');

		var width, border, color, itemPadding, item3D, spacer, left, height, level, section, cnt, j;
		var mainHeight = 0;
		var bgImg = '';

		for (var i = 0; i < this.items.length; i++) 
		{
			if (!i || this.items[i].level > this.items[i-1].level) 
			{
				this.sections[this.sections.length] = new makeSection(i, this.items[i].level, this.mainTop);
			}
		}

		for (i = cnt = 0; i < this.sections.length; i++) 
		{
			section = this.sections[i].nr;
			level = this.sections[i].level;
			if (level < 2) 
			{
				border = this.mainBorderWidth;
				color = this.mainBGColor[this.mainWhichBGColor];
				itemPadding = this.mainItemPadding;
				item3D = this.mainItem3D;
				spacer = this.mainItemSpacer;
				width = (this.style == 'top') ? 0 : this.mainItemWidth + border*2 + itemPadding*2 + item3D*2;
				left = this.mainLeft;
			}
			else 
			{
				border = this.subBorderWidth;
				color = this.subBGColor;
				itemPadding = this.subItemPadding;
				item3D = this.subItem3D;
				spacer = this.subItemSpacer;
				width = this.subItemWidth + border*2 + itemPadding*2 + item3D*2;
				if (this.style == 'top') 
				{
					if (level == 2) 
						for (j = cnt = 0; j < section; j++) 
						{
							if (this.items[j].level == 1) 
								cnt++;
						}
					left = this.mainLeft + this.mainBorderWidth + (this.mainItemWidth + this.mainItemPadding*2 + this.mainItem3D*2 + this.mainItemSpacer) * (cnt-1);
					left += (level-2) * (width - this.subOffsetLeft);
				}
				else 
					left = this.mainLeft + this.mainItemWidth - this.subOffsetLeft + ((this.mainBorderWidth+this.mainItemPadding+this.mainItem3D)*2) + (level-2) * (width-this.subOffsetLeft);
			}
			height = 0;

			for (j = section; j < this.items.length; j++) 
			{
				if (this.items[j].parent == this.items[section].parent) 
				{
					if (level < 2 && this.style == 'top') 
					{
						width += this.mainItemWidth + itemPadding*2 + item3D*2 + spacer;
						if (this.items[j].height > height) 
							height = mainHeight = this.items[j].height;
					}
					else 
						height += this.items[j].height + itemPadding*2 + item3D*2 + spacer;
				}
			}
			
			if (this.style == 'top') 
			{
				if (level < 2) 
				{
					width += border*2 - spacer;
					height += itemPadding*2 + item3D*2 + spacer;
					mainHeight += border + itemPadding*2 + item3D*2;
				}
				else if (level == 2) 
				{
					this.sections[i].topY += mainHeight;
					this.sections[i].y = this.sections[i].topY;
				}
			}
			height += border*2 - spacer;

			if (color.search(/\.(jpg|jpeg|jpe|gif|png)$/i) != -1) 
			{
				bgImg = color;
				color = '';
			}
			else 
				bgImg = this.imgBlank;

			this.sections[i].width = width;
			this.sections[i].height = height;
	
			if (IE4 || DOM) 
				document.write('<div id="section' + this.mNr + '_' + i + '" style="position:absolute' +
						'; top:' + this.sections[i].topY + 'px' +
						'; left:' + left + 'px' +
						'; width:' + width + 'px' +
						'; height:' + height + 'px' +
						(color ? '; background-color:' + color : '') +
						'; z-index:' + i +
						'; visibility:hidden">');
			else if (NN4) 
				document.write('<layer id="section' + this.mNr + '_' + i + '"' +
						' top=' + this.sections[i].topY +
						' left=' + left +
						' width=' + width +
						' height=' + height +
						(color ? ' bgcolor=' + color : '') +
						' z-index=' + i +
						' visibility="hide">');

			document.write('<a href="#" onMouseOver="mObj[' + this.mNr + '].mOver=true" onMouseOut="mObj[' + this.mNr + '].mOver=false">' +
					'<img src="' + bgImg + '" border=0 width=' + this.sections[i].width +
					' height=' + this.sections[i].height + '></a>');

			this.buildItems(section-1, i);

			if (IE4 || DOM) 
				document.write('</div>');
			else if (NN4) 
				document.write('</layer>');

			if (this.mainOpacity && level < 2) 
				this.setOpacity(i, this.mainOpacity);
			else if (this.subOpacity && level > 1) 
				this.setOpacity(i, this.subOpacity);
		}
	}

	this.create = function() 
	{
		this.mNr = mObj.length;
		if (mObj[this.mNr] = this) 
		{
			this.buildSections();
			this.showMenu(0);
			if (this.iv) 
				clearInterval(this.iv);
			this.iv = setInterval('mObj[' + this.mNr + '].checkIt()', 1);
		}
		else 
			alert("Could not create menu!");
	}

	//-------------------------------------------------------------------------------------
	// Arguments: position level 1, [position level 2], ... [position level n]
	// Example:   jumpTo(1, 3, 2, 1) ==> this jumps to menu item 1.3.2.1
	// Note:      does not work with NN 4 (who knows why?)
	//
	this.jumpTo = function() 
	{
		var pos, aktPos;
		var item = 0;
		var level = 1;
		if (!arguments) 
			var arguments = this.jumpTo.arguments;
		for (i = 0; i < arguments.length; i++, level++) 
		{
			pos = arguments[i];
			for (aktPos = 0; item < this.items.length && aktPos < pos; item++) 
			{
				if (this.items[item].level == level) 
					aktPos++;
			}
		}
		if (item) 
		{
			item--;
			if (this.items[item].onClick) 
				eval(this.items[item].onClick);
			this.jumpURL(this.items[item].url);
		}
	}
	//-------------------------------------------------------------------------------------
}

function makeItem(nr, level, height, text, url, onClick, target) 
{
	this.level = level;
	this.height = height;
	this.text = text;
	this.url = url;
	this.onClick = onClick;
	this.target = target;
	this.parent = -1;
}

function makeSection(nr, level, topY) 
{
	this.nr = nr;
	this.level = level;
	this.topY = topY;
	this.active = false;
	this.y = topY;
	this.width = 0;
	this.height = 0;
	this.timer = 0;
	this.opacity = 0;
}

//----------------------------------------------------------------------------------------------------