///////////////////////////////////////
//                                   //
//  OBJETOS HTML                     //
//  -------------------------------  //
//  Creación de texto HTML a partir  //
//  de objetos en JavaScript.        //
//  http://www.apuros.com            //
//                                   //
///////////////////////////////////////
function htmlTabla(_width, _align, _border, _cellPadding, _cellSpacing){
	this._align=(_align==undefined) ? null : _align ;
	this._width=(_width==undefined) ? null : _width ;
	this._border=(_border==undefined) ? 0 : _border ;
	this._cellPadding=(_cellPadding==undefined) ? 0 : _cellPadding ;
	this._cellSpacing=(_cellSpacing==undefined) ? 0 : _cellSpacing ;
	this.aFilas=[];
	this.filas=0;
}
htmlTabla.prototype.add=function(){
	var ultimo=this.aFilas.length;
	this.aFilas[ultimo]=new htmlFila();
	this.filas++;
	return this.aFilas[ultimo];
};
htmlTabla.prototype.toString=function(){
	var str='<TABLE';
	if (this._width!='' && this._width!=undefined) str+=' WIDTH="'+this._width+'"';
	if (this._align!='' && this._align!=undefined) str+=' ALIGN="'+this._align+'"';
	if (this._border!='' && this._border!=undefined) str+=' BORDER="'+this._border+'"';
	if (this._cellPadding!='' && this._cellPadding!=undefined) str+=' CELLPADDING="'+this._cellPadding+'"';
	if (this._cellSpacing!='' && this._cellSpacing!=undefined) str+=' CELLSPACING="'+this._cellSpacing+'"';	
	str+='>';
	for (var i=0; i<this.aFilas.length; i++)
		str+=this.aFilas[i]+'\n'
	return str+'</TABLE>';
};
// objeto htmlFila
function htmlFila(){
	this.aCeldas=[];
}
htmlFila.prototype.add=function(contenido, _vAlign, _align, _width, _class, _colspan) {
	var ultimo=this.aCeldas.length;
	this.aCeldas[ultimo]=new htmlCelda(contenido, _vAlign, _align, _width, _class, _colspan);
	return this.aCeldas[ultimo];
};
htmlFila.prototype.toString=function(){
	var str='<TR>';
	for (var i=0; i<this.aCeldas.length; i++)
		str+=this.aCeldas[i]
	return str+'</TR>';
};
// objeto htmlCelda
function htmlCelda(contenido, _vAlign, _align, _width, _class, _colspan){
	this.contenido='\n'+contenido+'\n';
	this._align=(_align==undefined) ? null : _align ;
	this._width=(_width==undefined) ? null : _width ;
	this._colspan=(_colspan==undefined) ? 0 : _colspan ;
	this._vAlign=(_vAlign==undefined) ? 0 : _vAlign ;
	this._class=(_class==undefined) ? 0 : _class ;
}
htmlCelda.prototype.toString=function(){
	var str='<TD';
	if (this._vAlign!='' && this._vAlign!=undefined) str+=' VALIGN="'+this._vAlign+'"';
	if (this._align!='' && this._align!=undefined) str+=' ALIGN="'+this._align+'"';
	if (this._width!='' && this._width!=undefined) str+=' WIDTH="'+this._width+'"';
	if (this._class!='' && this._class!=undefined) str+=' CLASS="'+this._class+'"';
	if (this._colspan!='' && this._colspan!=undefined) str+=' COLSPAN="'+this._colspan+'"';
	if (this._bgcolor!='' && this._bgcolor!=undefined) str+=' BGCOLOR="'+this._bgcolor+'"';
	if (this._background!='' && this._background!=undefined) str+=' BACKGROUND="'+this._background+'"';
	str+='>'+this.contenido+'</TD>';
	return str;
};
//<IMG
function htmlImagen(url,borde,ancho,alto){
	this.url=url;
	this.borde=borde;
	this.ancho=ancho;
	this.alto=alto;
}
htmlImagen.prototype.toString=function(){
	var str='<img src="'+this.url+'"';
	if (this.borde!='') str+=' border="'+this.borde+'"';
	if (this.ancho!='') str+=' width="'+this.ancho+'"';
	if (this.alto!='') str+=' height="'+this.alto+'"';
	str+='>';
	return str;
};
//<A HREF...>
function htmlAncla(url,texto){
	this.url=url;
	this.texto=texto;
}
htmlAncla.prototype.toString=function(){
/*
	var str='';
	if (this.texto==''){
		str='<A NAME="'+this.url+'"></A>';
	}else{
		str='<A HREF="'+this.url+'">'+this.texto+'</A>';
	}
	return str;
*/
	return (this.texto=='') ? '<A NAME="'+this.url+'"></A>' : '<A HREF="'+this.url+'">'+this.texto+'</A>'
};