/* X Library, Copyright 2001-2005 Michael Foster (Cross-Browser.com). Distributed under the terms of the GNU LGPL */
/* floater_xlib.js compiled with XC v0.22b, see floater_xlib.txt for contributor copyrights, license info and documentation */
// Edited for use @ ffour by Tom Holbeach
var xVersion='4.0',xOp7Up,xOp6Dn,xIE4Up,xIE4,xIE5,xNN4,xUA=navigator.userAgent.toLowerCase();if(window.opera){var i=xUA.indexOf('opera');if(i!=-1){var v=parseInt(xUA.charAt(i+6));xOp7Up=v>=7;xOp6Dn=v<7;}}else if(navigator.vendor!='KDE' && document.all && xUA.indexOf('msie')!=-1){xIE4Up=parseFloat(navigator.appVersion)>=4;xIE4=xUA.indexOf('msie 4')!=-1;xIE5=xUA.indexOf('msie 5')!=-1;}else if(document.layers){xNN4=true;}xMac=xUA.indexOf('mac')!=-1;

function xResizeEvent(){if (window.xREL) setTimeout('xResizeEvent()', 250);var cw = xClientWidth(), ch = xClientHeight();if (window.xPCW != cw || window.xPCH != ch) { window.xPCW = cw; window.xPCH = ch; if (window.xREL) window.xREL(); }}

function xScrollEvent(){if (window.xSEL) setTimeout('xScrollEvent()', 250);var sl = xScrollLeft(), st = xScrollTop();if (window.xPSL != sl || window.xPST != st) { window.xPSL = sl; window.xPST = st; if (window.xSEL) window.xSEL(); }}

function xClientHeight(){var h=0;if(xOp6Dn) h=window.innerHeight;else if(document.compatMode == 'CSS1Compat' && !window.opera && document.documentElement && document.documentElement.clientHeight)h=document.documentElement.clientHeight;else if(document.body && document.body.clientHeight)h=document.body.clientHeight;else if(xDef(window.innerWidth,window.innerHeight,document.width)) {h=window.innerHeight;if(document.width>window.innerWidth) h-=16;}return h;}

function xClientWidth(){var w=0;if(xOp6Dn) w=window.innerWidth;else if(document.compatMode == 'CSS1Compat' && !window.opera && document.documentElement && document.documentElement.clientWidth)w=document.documentElement.clientWidth;else if(document.body && document.body.clientWidth)w=document.body.clientWidth;else if(xDef(window.innerWidth,window.innerHeight,document.height)) {w=window.innerWidth;if(document.height>window.innerHeight) w-=16;}return w;}

function xDef(){for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])=='undefined') return false;}return true;}

function xGetComputedStyle(oEle, sProp, bInt){var s, p = 'undefined';var dv = document.defaultView;if(dv && dv.getComputedStyle){s = dv.getComputedStyle(oEle,'');if (s) p = s.getPropertyValue(sProp);}else if(oEle.currentStyle) {var a = sProp.split('-');sProp = a[0];for (var i=1; i<a.length; ++i) {c = a[i].charAt(0);sProp += a[i].replace(c, c.toUpperCase());}   p = oEle.currentStyle[sProp];}else return null;return bInt ? (parseInt(p) || 0) : p;}

function xGetElementById(e){if(typeof(e)!='string') return e;if(document.getElementById) e=document.getElementById(e);else if(document.all) e=document.all[e];else e=null;return e;}

function xHeight(e,h){if(!(e=xGetElementById(e))) return 0;if (xNum(h)) {if (h<0) h = 0;else h=Math.round(h);}else h=-1;var css=xDef(e.style);if (e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {h = xClientHeight();}else if(css && xDef(e.offsetHeight) && xStr(e.style.height)) {if(h>=0) {var pt=0,pb=0,bt=0,bb=0;if (document.compatMode=='CSS1Compat') {var gcs = xGetComputedStyle;pt=gcs(e,'padding-top',1);if (pt !== null) {pb=gcs(e,'padding-bottom',1);bt=gcs(e,'border-top-width',1);bb=gcs(e,'border-bottom-width',1);}else if(xDef(e.offsetHeight,e.style.height)){e.style.height=h+'px';pt=e.offsetHeight-h;}}h-=(pt+pb+bt+bb);if(isNaN(h)||h<0) return;else e.style.height=h+'px';}h=e.offsetHeight;}else if(css && xDef(e.style.pixelHeight)) {if(h>=0) e.style.pixelHeight=h;h=e.style.pixelHeight;}return h;}

function xLeft(e, iX){if(!(e=xGetElementById(e))) return 0;var css=xDef(e.style);if (css && xStr(e.style.left)) {if(xNum(iX)) e.style.left=iX+'px';else {iX=parseInt(e.style.left);if(isNaN(iX)) iX=0;}}else if(css && xDef(e.style.pixelLeft)) {if(xNum(iX)) e.style.pixelLeft=iX;else iX=e.style.pixelLeft;}return iX;}

function xMoveTo(e,x,y){xLeft(e,x);xTop(e,y);}

function xNum(){for(var i=0; i<arguments.length; ++i){if(isNaN(arguments[i]) || typeof(arguments[i])!='number') return false;}return true;}

function xPageX(e){if (!(e=xGetElementById(e))) return 0;var x = 0;while (e) {if (xDef(e.offsetLeft)) x += e.offsetLeft;e = xDef(e.offsetParent) ? e.offsetParent : null;}return x;}

function xPageY(e){if (!(e=xGetElementById(e))) return 0;var y = 0;while (e) {if (xDef(e.offsetTop)) y += e.offsetTop;e = xDef(e.offsetParent) ? e.offsetParent : null;}return y;}

function xScrollLeft(e, bWin){var offset=0;if (!xDef(e) || bWin || e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {var w = window;if (bWin && e) w = e;if(w.document.documentElement && w.document.documentElement.scrollLeft) offset=w.document.documentElement.scrollLeft;else if(w.document.body && xDef(w.document.body.scrollLeft)) offset=w.document.body.scrollLeft;}else {e = xGetElementById(e);if (e && xNum(e.scrollLeft)) offset = e.scrollLeft;}return offset;}

function xScrollTop(e, bWin){var offset=0;if (!xDef(e) || bWin || e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {var w = window;if (bWin && e) w = e;if(w.document.documentElement && w.document.documentElement.scrollTop) offset=w.document.documentElement.scrollTop;else if(w.document.body && xDef(w.document.body.scrollTop)) offset=w.document.body.scrollTop;}else {e = xGetElementById(e);if (e && xNum(e.scrollTop)) offset = e.scrollTop;}return offset;}

function xShow(e) {return xVisibility(e,1);}

function xSlideTo(e, x, y, uTime,imgX, imgY, p){if (!(e=xGetElementById(e))) return;if (!e.timeout) e.timeout = 25; e.imgX = imgX; e.imgY = imgY; e.xTarget = x; e.yTarget = y; e.slideTime = uTime; e.stop = false;e.yA = e.yTarget - xTop(e); e.xA = e.xTarget - xLeft(e); if (e.slideLinear) e.B = 1/e.slideTime;else e.B = Math.PI / (e.slideTime); e.yD = xTop(e); e.xD = xLeft(e); var d = new Date(); e.C = d.getTime();if (!e.moving) _xSlideTo(e,p);}

function xSlideTo2(e, x, y, uTime, p){if (!(e=xGetElementById(e))) return;if (!e.timeout) e.timeout = 25;e.xTarget = x; e.yTarget = y; e.slideTime = uTime; e.stop = false;e.yA = e.yTarget - xTop(e); e.xA = e.xTarget - xLeft(e); if (e.slideLinear) e.B = 1/e.slideTime;else e.B = Math.PI / (e.slideTime); e.yD = xTop(e); e.xD = xLeft(e); var d = new Date(); e.C = d.getTime();if (!e.moving) _xSlideTo(e,p);}

function _xSlideTo(e,p){if (!(e=xGetElementById(e))) return;var now, s, t, newY, newX;now = new Date();t = now.getTime() - e.C;if (e.stop) { e.moving = false; }else if (t < e.slideTime) {setTimeout("_xSlideTo('"+e.id+"',"+p+")", e.timeout);if (e.slideLinear) s = e.B * t;else {if (t<(p*e.slideTime/2)) s = 0.5*Math.sin(e.B * t/p); else if((t>(p*e.slideTime/2))&&(t<((2-p)*e.slideTime/2))) s=0.5; else s= 1-0.5 * Math.sin(e.B *(t-((1-p)*e.slideTime))/p);} newX = Math.round(e.xA * s + e.xD);newY = Math.round(e.yA * s + e.yD);xMoveTo(e, newX, newY); xResize('floatImg', t, e.imgX, e.imgY, e.slideTime,p); e.moving = true;}  else {xMoveTo(e, e.xTarget, e.yTarget);e.moving = false; xVisibility(e,0);}  }

function xResize(e, t, x, y, s, p){if (!(e=xGetElementById(e))) return; var r; if((t>(p*s/2))&&(t<((2-p)*s/2))) r=1; else if(t<(p*s/2)) r=Math.sin(Math.PI * (t/s)/p); else  r = Math.sin(Math.PI * ((t-((1-p)*s))/s)/p); e.width = Math.round(x * r); e.height = Math.round(y * r);}

function xStr(s){for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])!='string') return false;}return true;}

function xTop(e, iY){if(!(e=xGetElementById(e))) return 0;var css=xDef(e.style);if(css && xStr(e.style.top)) {if(xNum(iY)) e.style.top=iY+'px';else {iY=parseInt(e.style.top);if(isNaN(iY)) iY=0;}}else if(css && xDef(e.style.pixelTop)) {if(xNum(iY)) e.style.pixelTop=iY;else iY=e.style.pixelTop;}return iY;}

function xVisibility(e, bShow){if(!(e=xGetElementById(e))) return null;if(e.style && xDef(e.style.visibility)) {if (xDef(bShow)) e.style.visibility = bShow ? 'visible' : 'hidden';return e.style.visibility;}return null;}

function xWidth(e,w){if(!(e=xGetElementById(e))) return 0;if (xNum(w)) {if (w<0) w = 0;else w=Math.round(w);}else w=-1;var css=xDef(e.style);if (e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {w = xClientWidth();}else if(css && xDef(e.offsetWidth) && xStr(e.style.width)) {if(w>=0) {var pl=0,pr=0,bl=0,br=0;if (document.compatMode=='CSS1Compat') {var gcs = xGetComputedStyle;pl=gcs(e,'padding-left',1);if (pl !== null) {pr=gcs(e,'padding-right',1);bl=gcs(e,'border-left-width',1);br=gcs(e,'border-right-width',1);}else if(xDef(e.offsetWidth,e.style.width)){e.style.width=w+'px';pl=e.offsetWidth-w;}}w-=(pl+pr+bl+br);if(isNaN(w)||w<0) return;else e.style.width=w+'px';}w=e.offsetWidth;}else if(css && xDef(e.style.pixelWidth)) {if(w>=0) e.style.pixelWidth=w;w=e.style.pixelWidth;}return w;}