function cLayer (sParNombre)
{
	this.sName = sParNombre;
	this.sLayer = this.bEsNS4 ? "document." + this.sName : (oNavegador.bEsDOM ? "document.getElementById ('" + this.sName + "')" : "document.all." + this.sName);
	this.oLayer = eval (this.sLayer);
	this.sCSS = this.bEsNS4 ? this.sLayer : this.sLayer + ".style";
	this.oCSS = this.oLayer ? eval (this.sCSS) : null;
	this.Show = cLayer_Show;
	this.Hide = cLayer_Hide;	
	this.nGetLeft = cLayer_nGetLeft;
	this.SetLeft = cLayer_SetLeft;
	this.nGetTop = cLayer_nGetTop;
	this.SetTop = cLayer_SetTop;
	this.nGetWidth = cLayer_nGetWidth;
	this.SetWidth = cLayer_SetWidth;
	this.nGetHeight = cLayer_nGetHeight;
	this.SetHeight = cLayer_SetHeight;
	this.SetDimensions = cLayer_SetDimensions;
	this.Write = cLayer_Write;
	this.MoveBy = cLayer_MoveBy;
	this.MoveTo = cLayer_MoveTo;
	this.MoveUp = cLayer_MoveUp;
	this.MoveDown = cLayer_MoveDown;
	this.MoveLeft = cLayer_MoveLeft;
	this.MoveRight = cLayer_MoveRight;
	this.SetColor = cLayer_SetColor;
	this.SetBGColor = cLayer_SetBGColor;
	this.anGetClip = cLayer_anGetClip;
	this.nGetClipTop = cLayer_nGetClipTop;
	this.nGetClipRight = cLayer_nGetClipRight;
	this.nGetClipBottom = cLayer_nGetClipBottom;
	this.nGetClipLeft = cLayer_nGetClipLeft;
	this.nGetClipHeight = cLayer_nGetClipHeight;
	this.nGetClipWidth = cLayer_nGetClipWidth;
	this.SetClipTop = cLayer_SetClipTop;
	this.SetClipRight = cLayer_SetClipRight;
	this.SetClipBottom = cLayer_SetClipBottom;
	this.SetClipLeft = cLayer_SetClipLeft;
	this.SetClip = cLayer_SetClip;
	this.ScrollUp = cLayer_ScrollUp;
	this.ScrollDown = cLayer_ScrollDown;
	this.ScrollLeft = cLayer_ScrollLeft;
	this.ScrollRight = cLayer_ScrollRight;
	this.bVisible = this.oCSS ? (this.oCSS.visibility != "hidden" && this.oCSS.display != "none") : false;
	this.nLeft = this.oCSS ? ( (this.oCSS.left == "") ? this.oLayer.offsetLeft : this.oCSS.left ) : 0;
	this.nTop = this.oCSS ? ( (this.oCSS.top == "") ? this.oLayer.offsetTop : this.oCSS.top ) : 0;
	this.nWidth = this.oCSS ? ( (this.oCSS.width == "") ? this.oLayer.offsetWidth : this.oCSS.width ) : 0;
	this.nHeight = this.oCSS ? ( (this.oCSS.height == "") ? this.oLayer.offsetHeight : this.oCSS.height ) : 0;
	this.nClipLeft = 0;
	this.nClipTop = 0;
	this.nClipRight = this.nWidth;
	this.nClipBottom = this.nHeight;
	this.nClipWidth = this.nWidth;
	this.nClipHeight = this.nHeight;
	this.sColor = "#000000";
	this.sBGColor = "#FFFFFF";
}
function cLayer_Show ()
{
	this.oCSS = eval (this.sCSS);
	if (this.oCSS) {
		if (oNavegador.bEsNS4)
			this.oCSS.visibility = "visible";
		else {
			this.oCSS.display = "";
			this.oCSS.visibility = "visible";
		}
		this.bVisible = true;
	}
}
function cLayer_Hide ()
{
	this.oCSS = eval (this.sCSS);
	if (this.oCSS) {
		if (oNavegador.bEsNS4)
			this.oCSS.visibility = "hidden";
		else {
			this.oCSS.display = "none";
			this.oCSS.visibility = "hidden";
		}
		this.bVisible = false;
	}
}
function cLayer_nGetLeft ()
{	
/*	var sLeft = oNavegador.bEsNS4 ? '.pageX' : (oNavegador.bEsDOM ? '.left' : '.pixelLeft');
	if (this.oCSS) {
		var nLeft = eval (this.sCSS + sLeft);
		if (nLeft == "") nLeft = 0;
		return parseInt ( nLeft );
	}
	else return (this.nLeft);*/
	return (this.nLeft);
}
function cLayer_SetLeft (nParLeft)
{
	this.oCSS = eval (this.sCSS);
	this.nLeft = nParLeft;
	var sLeft = oNavegador.bEsNS4 ? '.pageX' : (oNavegador.bEsDOM ? '.left' : '.pixelLeft');
	if (nParLeft != null && this.oCSS) {
		eval ( this.sCSS + sLeft + ' = ' + nParLeft + ';');
	}
}
function cLayer_nGetTop ()
{
/*	var sTop = oNavegador.bEsNS4 ? '.pageY' : (oNavegador.bEsDOM ? '.top' : '.pixelTop');
	if (this.oCSS) {
		var n = eval (this.sCSS + sTop);
		if (n == "") n = 0;
		return parseInt ( n );
	}
	else return (this.nTop);
*/
	return (this.nTop);
}
function cLayer_SetTop (nParTop)
{
	this.oCSS = eval (this.sCSS);
	var sTop = oNavegador.bEsNS4 ? '.pageY' : (oNavegador.bEsDOM ? '.top' : '.pixelTop');
	if (nParTop != null && this.oCSS)
		eval (this.sCSS + sTop + ' = ' + nParTop);
	this.nTop = nParTop;
}
function cLayer_nGetWidth ()
{
/*	var sWidth = oNavegador.bEsNS4 ? '.width' : (oNavegador.bEsDOM ? '.width' : '.pixelWidth');
	if (this.oCSS) {
		var n = eval (this.sCSS + sWidth);
		if (n == "") n = 0;
		return parseInt ( n );
	}
	else return (this.nWidth);*/
	return (this.nWidth);
}
function cLayer_SetWidth (nParWidth)
{
	this.oCSS = eval (this.sCSS);
	var sWidth = oNavegador.bEsNS4 ? '.width' : (oNavegador.bEsDOM ? '.width' : '.pixelWidth');
	if (nParWidth != null && this.oCSS)
		eval (this.sCSS + sWidth + ' = ' + nParWidth);
	this.nWidth = nParWidth;
}
function cLayer_nGetHeight ()
{
/*	var sHeight = oNavegador.bEsNS4 ? '.height' : (oNavegador.bEsDOM ? '.height' : '.pixelHeight');
	if (this.oCSS) {
		var n = eval (this.sCSS + sHeight);
		if (n == "") n = 0;
		return parseInt ( n );
	}
	else return (this.nHeight);*/
	return (this.nHeight);
}
function cLayer_SetHeight (nParHeight)
{
	this.oCSS = eval (this.sCSS);
	var sHeight = oNavegador.bEsNS4 ? '.height' : (oNavegador.bEsDOM ? '.height' : '.pixelHeight');
	if (nParHeight != null && this.oCSS)
		eval (this.sCSS + sHeight + ' = ' + nParHeight);
	this.nHeight = nParHeight;
}
function cLayer_SetDimensions (nParWidth, nParHeight)
{
	this.SetWidth (nParWidth);
	this.SetHeight (nParHeight);
}
function cLayer_MoveBy (nParDx, nParDy)
{
	if (! nParDx) nParDx = 0;
	if (! nParDy) nParDy = 0;
	this.SetLeft (this.nGetLeft() + nParDx);
	this.SetTop (this.nGetTop() + nParDy);
}
function cLayer_MoveTo (nParX, nParY)
{
	this.SetLeft (nParX);
	this.SetTop (nParY);
}
function cLayer_MoveUp (nParPixels)
{
	this.MoveBy ( null, -nParPixels );
}
function cLayer_MoveDown (nParPixels)
{
	this.MoveBy ( null, nParPixels );	
}
function cLayer_MoveLeft (nParPixels)
{
	this.MoveBy ( -nParPixels, null );
}
function cLayer_MoveRight (nParPixels)
{
	this.MoveBy ( nParPixels, null );
}
function cLayer_SetColor (sParColor)
{
	this.oCSS = eval (this.sCSS);
	if (this.oCSS)
		eval (this.sCSS + '.color = "' + sParColor + '"');
	this.sColor = sParColor;
}
function cLayer_SetBGColor (sParBGColor)
{
	this.oCSS = eval (this.sCSS);
	sBGColor = oNavegador.bEsNS4 ? ".bgColor" : ".backgroundColor";
	if (this.oCSS)
		eval (this.sCSS + sBGColor + ' = "' + sParBGColor + '"');
	this.sBGColor = sParBGColor;
}
function cLayer_Write (sParTexto)
{	
	this.oLayer = eval (this.sLayer);	
	if (oNavegador.bEsNS4) {
		this.oLayer.document.open();
		this.oLayer.document.write(sParTexto);
		this.oLayer.document.close();
	} else {
		this.oLayer.innerHTML = sParTexto;
		//eval (this.sLayer + ".innerHTML = \"" + sParTexto + "\";");
	}
}
function cLayer_anGetClip ()
{
	var anClip = new Array();
	var asClip = new Array();
/*	vClipRect = eval (this.sCSS + '.clip');	
	if (oNavegador.bEsNS4) {
		anClip[0] = vClipRect.top;
		anClip[1] = vClipRect.right;
		anClip[2] = vClipRect.bottom;
		anClip[3] = vClipRect.left;		
	} else {
		if (vClipRect == "")
			vClipRect = "0 0 0 0";
		else
			vClipRect = vClipRect.substring ( vClipRect.indexOf ( '(' ) + 1, vClipRect.indexOf ( ')' ) );
		asClip = vClipRect.split ( ' ' );
		anClip[0] = (asClip[0] == "") ? 0 : parseInt (asClip[0]);
		anClip[1] = (asClip[1] == "") ? 0 : parseInt (asClip[1]);
		anClip[2] = (asClip[2] == "") ? 0 : parseInt (asClip[2]);
		anClip[3] = (asClip[3] == "") ? 0 : parseInt (asClip[3]);
	}*/
	anClip[0] = this.nClipTop;
	anClip[1] = this.nClipRight;
	anClip[2] = this.nClipBottom;
	anClip[3] = this.nClipLeft;
	return (anClip);
}
function cLayer_nGetClipTop ()
{
//	return parseInt (oNavegador.bEsNS4 ? eval (this.sCSS + '.clip.top' ) : this.anGetClip()[0]);
	return this.nClipTop;
}
function cLayer_nGetClipRight ()
{
//	return parseInt (oNavegador.bEsNS4 ? eval (this.sCSS + '.clip.right' ) : this.anGetClip()[1]);
	return this.nClipRight;
}
function cLayer_nGetClipBottom ()
{
//	return parseInt (oNavegador.bEsNS4 ? eval (this.sCSS + '.clip.bottom' ) : this.anGetClip()[2]);
	return this.nClipBottom;
}
function cLayer_nGetClipLeft ()
{
//	return parseInt (oNavegador.bEsNS4 ? eval (this.sCSS + '.clip.left' ) : this.anGetClip()[3]);
	return this.nClipLeft;
}
function cLayer_nGetClipHeight ()
{
	return this.nClipBottom + this.nClipTop;
}
function cLayer_nGetClipWidth ()
{
	return this.nClipRight - this.nClipLeft;
}
function cLayer_SetClip (nParTop, nParRight, nParBottom, nParLeft)
{
	this.oCSS = eval (this.sCSS);
	if (oNavegador.bEsNS4) {
		this.SetClipTop (nParTop);
		this.SetClipRight (nParRight);
		this.SetClipBottom (nParBottom);
		this.SetClipLeft (nParLeft);
	} else {		
		sRect = 'rect(' + nParTop + 'px ' + nParRight + 'px ' + nParBottom + 'px ' + nParLeft + 'px)';
		this.oCSS.clip = sRect;
	}
	this.nClipTop = nParTop;
	this.nClipRight = nParRight;
	this.nClipBottom = nParBottom;
	this.nClipLeft = nParLeft;
	this.nClipWidth = this.nClipRight - this.nClipLeft;
	this.nClipHeight = this.nClipBottom - this.nClipTop;
}
function cLayer_SetClipTop (nParPixels)
{
	this.oCSS = eval (this.sCSS);
	this.nClipTop = nParPixels;
	if (oNavegador.bEsNS4) {
		eval (this.sCSS + '.clip.top=' + nParPixels);
	} else {
		this.SetClip (nParPixels, this.nGetClipRight(), this.nGetClipBottom(), this.nGetClipLeft());
	}
}
function cLayer_SetClipRight (nParPixels)
{
	this.oCSS = eval (this.sCSS);
	this.nClipRight = nParPixels;
	if (oNavegador.bEsNS4) {
		eval (this.sCSS + '.clip.right=' + nParPixels);
	} else {
		this.SetClip (this.nGetClipTop(), nParPixels, this.nGetClipBottom(), this.nGetClipLeft());
	}
}
function cLayer_SetClipBottom (nParPixels)
{
	this.oCSS = eval (this.sCSS);
	this.nClipBottom = nParPixels;
	if (oNavegador.bEsNS4) {
		eval (this.sCSS + '.clip.bottom=' + nParPixels);
	} else {
		this.SetClip (this.nGetClipTop(), this.nGetClipRight(), nParPixels, this.nGetClipLeft());
	}
}
function cLayer_SetClipLeft (nParPixels)
{
	this.oCSS = eval (this.sCSS);
	this.nClipLeft = nParPixels;
	if (oNavegador.bEsNS4) {
		eval (this.sCSS + '.clip.left=' + nParPixels);
	} else {
		this.SetClip (this.nGetClipTop(), this.nGetClipRight(), this.nGetClipBottom(), nParPixels);
	}
}
function cLayer_ScrollUp (nParPixels)
{
	this.SetClipTop (this.nGetClipTop() - nParPixels);
	this.SetClipBottom (this.nGetClipBottom() - nParPixels);
	this.MoveDown (nParPixels);
	this.SetDimensions ( this.nGetWidth(), this.nGetHeight() - nParPixels);
}
function cLayer_ScrollDown (nParPixels)
{
	this.SetClipTop (this.nGetClipTop() + nParPixels);
	this.SetClipBottom (this.nGetClipBottom() + nParPixels);
	this.MoveUp (nParPixels);
	this.SetDimensions ( this.nGetWidth(), this.nGetHeight() + nParPixels);
}
function cLayer_ScrollLeft (nParPixels)
{
	this.SetClipLeft (this.nGetClipLeft() - nParPixels);
	this.SetClipRight (this.nGetClipRight() - nParPixels);
	this.MoveRight (nParPixels);
	this.SetDimensions ( this.nGetWidth() - nParPixels, this.nGetHeight());
}
function cLayer_ScrollRight (nParPixels)
{
	this.SetClipLeft (this.nGetClipLeft() + nParPixels);
	this.SetClipRight (this.nGetClipRight() + nParPixels);
	this.MoveLeft (nParPixels);
	this.SetDimensions ( this.nGetWidth() + nParPixels, this.nGetHeight());
}