function myFromElement(evt){return(evt.relatedTarget)?evt.relatedTarget:evt.fromElement;}
function myTargetElement(evt){return(window.event)?evt.srcElement:evt.target;}
function myToElement(evt){return(evt.relatedTarget)?evt.relatedTarget:evt.toElement;}
function xAddEventListener(e,eT,eL,cap)
{if(!(e=xGetElementById(e)))return;eT=eT.toLowerCase();if(e.addEventListener)e.addEventListener(eT,eL,cap||false);else if(e.attachEvent)e.attachEvent('on'+eT,eL);else{var o=e['on'+eT];e['on'+eT]=typeof o=='function'?function(v){o(v);eL(v);}:eL;}}
function xCamelize(cssPropStr)
{var i,c,a=cssPropStr.split('-');var s=a[0];for(i=1;i<a.length;++i){c=a[i].charAt(0);s+=a[i].replace(c,c.toUpperCase());}
return s;}
function xDef()
{for(var i=0;i<arguments.length;++i){if(typeof(arguments[i])=='undefined')return false;}
return true;}
function xGetComputedStyle(e,p,i)
{if(!(e=xGetElementById(e)))return null;var s,v='undefined',dv=document.defaultView;if(dv&&dv.getComputedStyle){s=dv.getComputedStyle(e,'');if(s)v=s.getPropertyValue(p);}
else if(e.currentStyle){v=e.currentStyle[xCamelize(p)];}
else return null;return i?(parseInt(v)||0):v;}
function xGetElementById(e)
{if(typeof(e)=='string'){if(document.getElementById)e=document.getElementById(e);else if(document.all)e=document.all[e];else e=null;}
return e;}
function xGetElementsByClassName(c,p,t,f)
{var r=new Array();var re=new RegExp("(^|\\s)"+c+"(\\s|$)");var e=xGetElementsByTagName(t,p);for(var i=0;i<e.length;++i){if(re.test(e[i].className)){r[r.length]=e[i];if(f)f(e[i]);}}
return r;}
function xGetElementsByTagName(t,p)
{var list=null;t=t||'*';p=xGetElementById(p)||document;if(typeof p.getElementsByTagName!='undefined'){list=p.getElementsByTagName(t);if(t=='*'&&(!list||!list.length))list=p.all;}
else{if(t=='*')list=p.all;else if(p.all&&p.all.tags)list=p.all.tags(t);}
return list||[];}
function xHasPoint(e,x,y,t,r,b,l)
{if(!xNum(t)){t=r=b=l=0;}
else if(!xNum(r)){r=b=l=t;}
else if(!xNum(b)){l=r;b=t;}
var eX=xPageX(e),eY=xPageY(e);return(x>=eX+l&&x<=eX+xWidth(e)-r&&y>=eY+t&&y<=eY+xHeight(e)-b);}
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 xNum()
{for(var i=0;i<arguments.length;++i){if(isNaN(arguments[i])||typeof(arguments[i])!='number')return false;}
return true;}
function xPageX(e)
{var x=0;e=xGetElementById(e);while(e){if(xDef(e.offsetLeft))x+=e.offsetLeft;e=xDef(e.offsetParent)?e.offsetParent:null;}
return x;}
function xPageY(e)
{var y=0;e=xGetElementById(e);while(e){if(xDef(e.offsetTop))y+=e.offsetTop;e=xDef(e.offsetParent)?e.offsetParent:null;}
return y;}
function xRemoveEventListener(e,eT,eL,cap)
{if(!(e=xGetElementById(e)))return;eT=eT.toLowerCase();if(e.removeEventListener)e.removeEventListener(eT,eL,cap||false);else if(e.detachEvent)e.detachEvent('on'+eT,eL);else e['on'+eT]=null;}
function xStr(s)
{for(var i=0;i<arguments.length;++i){if(typeof(arguments[i])!='string')return false;}
return true;}
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;}
function xEvent(evt)
{var e=evt||window.event;if(!e)return;this.type=e.type;this.target=e.target||e.srcElement;this.relatedTarget=e.relatedTarget;if(xDef(e.pageX)){this.pageX=e.pageX;this.pageY=e.pageY;}
else if(xDef(e.clientX)){this.pageX=e.clientX+xScrollLeft();this.pageY=e.clientY+xScrollTop();}
if(xDef(e.offsetX)){this.offsetX=e.offsetX;this.offsetY=e.offsetY;}
else if(xDef(e.layerX)){this.offsetX=e.layerX;this.offsetY=e.layerY;}
else{this.offsetX=this.pageX-xPageX(this.target);this.offsetY=this.pageY-xPageY(this.target);}
this.keyCode=e.keyCode||e.which||0;this.shiftKey=e.shiftKey;this.ctrlKey=e.ctrlKey;this.altKey=e.altKey;if(typeof e.type=='string'){if(e.type.indexOf('click')!=-1){this.button=0;}
else if(e.type.indexOf('mouse')!=-1){this.button=e.button;}}}
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;}