//////////////////////////////////////////
// Fading functions for top menu items
//
// object - image to be faded (actual object, not name);
// destop - destination transparency level (ie 80, for mostly solid)
// rate - time in milliseconds between trasparency changes (best under 100)
// delta - amount of change each time (ie 5, for 5% change in transparency)
//////////////////////////////////////////

function nereidFade(object, destOp, rate, delta) {
	if (!document.all) return
	if (object != "[object]") { //do this so I can take a string too
		setTimeout("nereidFade(" + object + "," + destOp + "," + rate + "," + delta + ")",0);
		return;
	}

	clearTimeout(nereidFadeTimers[object.sourceIndex]);

	diff = destOp - object.filters.alpha.opacity;
	direction = 1;
	
	if (object.filters.alpha.opacity > destOp) {
		direction = -1;
	}

	delta = Math.min(direction * diff, delta);
	object.filters.alpha.opacity += direction * delta;

	if (object.filters.alpha.opacity != destOp) {
		nereidFadeObjects[object.sourceIndex] = object;
		nereidFadeTimers[object.sourceIndex] = setTimeout("nereidFade(nereidFadeObjects[" + object.sourceIndex + "]," + destOp + "," + rate + "," + delta + ")", rate);
	}
}

nereidFadeObjects = new Object();
nereidFadeTimers = new Object();

/////////////////////////////////////////
// Convert userAgent string to Lowercase
/////////////////////////////////////////

var agt=navigator.userAgent.toLowerCase();

/////////////////////////////////////////////
// Browser Version Detection Functions in JS
/////////////////////////////////////////////

var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

var is_ns  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1));
var is_ns2 = (is_ns && (is_major == 2));
var is_ns3 = (is_ns && (is_major == 3));
var is_ns4 = (is_ns && (is_major == 4));
var is_ns4up = (is_ns && (is_major >= 4));
var is_ns5 = (is_ns && (is_major == 5));
var is_ns5up = (is_ns && (is_major >= 5));

var is_ie   = (agt.indexOf("msie") != -1);
var is_ie3  = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")==-1) && (agt.indexOf("msie 5.5")==-1));
var is_ie4up  = (is_ie  && (is_major >= 4));
var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) || (agt.indexOf("msie 5.5")!=-1));
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);

var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);

var is_opera = (agt.indexOf("opera") != -1);
var is_webtv = (agt.indexOf("webtv") != -1);

////////////
// Platform
////////////

var is_win   = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));
var is_win16 = ((agt.indexOf("win16")!=-1) || (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("windows 16-bit")!=-1) );
var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) || (agt.indexOf("windows 16-bit")!=-1));

var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
var is_win32 = (is_win95 || is_winnt || is_win98 || ((is_major >= 4) && (navigator.platform == "Win32")) || (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));

var is_os2   = ((agt.indexOf("os/2")!=-1) || (navigator.appVersion.indexOf("OS/2")!=-1) || (agt.indexOf("ibm-webexplorer")!=-1));

var is_mac = (agt.indexOf("mac")!=-1);
var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || (agt.indexOf("68000")!=-1)));
var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || (agt.indexOf("powerpc")!=-1)));

/////////////////////////////////////
// Detect IE 4.5 on the mac
// Mucho Problemos with this browser
/////////////////////////////////////
var is_ie45mac  = (is_mac && is_ie && (agt.indexOf("msie 5.0")==-1) && (agt.indexOf("msie 5.5")==-1) && (agt.indexOf("msie 4.5")!=-1));

/////////////////////////////////////////
// Layer Functions (show, hide)
// Last Modified: 2-27-02
/////////////////////////////////////////


var layerRef = '';
var styleRef = '';

if (is_ns5up || is_ie5up) {
	layerRef = 'document.getElementById';
	styleRef = '.style';
}
else
{
	if (is_ns4)
	{
		layerRef = 'document.layers';
		styleRef = '';
	}
	else
	{
		layerRef = 'document.all';
		styleRef = '.style';
	}
}

function showLayer(theLayer) {
	if (!is_mac && (is_ie4up || is_ns5up || is_aol)) {
		eval(layerRef + '("' +theLayer+ '")' + styleRef + '.visibility="visible"');
	}
}

function hideLayer(theLayer) {
	if (!is_mac && (is_ie4up || is_ns5up || is_aol)) {
		eval(layerRef + '("' +theLayer+ '")' + styleRef + '.visibility="hidden"');
	}
}

function swapImage(picName, imgName) {
	if (!is_mac && (is_ie4up || is_ns5up || is_aol)) {
		imgSwap=eval(imgName + ".src");
		eval(layerRef + '("' +picName+ '").src="' + imgSwap + '"');
	}
}

function changeTableCellColorOver(el)
{
	el.style.border='1px solid #DE0000'
}

function changeTableCellColorOut(el)
{
	el.style.border='1px solid #DEDEDE'
}

function swapHref(theHrefLayer, theHrefPath) {
	if (!is_mac && (is_ie4up || is_ns5up || is_aol)) {
		eval(layerRef + '("' +theHrefLayer+ '").href="' +theHrefPath+ '"');
	}
}

function NewWindow(mypage, myname, w, h, scroll, itemID)
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable';
	win = window.open(mypage+'?id='+itemID,myname,settings);
}

function NewRegWindow(mypage, myname, w, h, scroll)
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable';
	win = window.open(mypage,myname,settings);
}

function NewSystemWindow(mypage, myname, w, h, scroll, itemID)
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable';
	win = window.open(mypage+'?rig='+itemID,myname,settings);
}