function OpenBrWindow(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0
  if(window.screen)if(isCenter)if(isCenter=="true"){
    var myLeft = (screen.width-myWidth)/2;
    var myTop = (screen.height-myHeight)/2;
    features+=(features!='')?',':'';
    features+=',left='+myLeft+',top='+myTop;
  }
  ventana=window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
	ventana.focus();
}
//rollover imagenes
var imagenes=new Array();

function cargaover(obj){
	var imagenoriginal=obj.src;
	var imagenfinal=imagenoriginal;
	if (imagenoriginal.indexOf(".gif")!=-1){
		if (imagenoriginal.indexOf("_o.gif")==-1){
			imagenfinal=imagenoriginal.substr(0,imagenoriginal.indexOf(".gif"))+"_o.gif";
		}
	}
	if (imagenoriginal.indexOf(".jpg")!=-1){
		if (imagenoriginal.indexOf("_o.jpg")==-1){
			imagenfinal=imagenoriginal.substr(0,imagenoriginal.indexOf(".jpg"))+"_o.jpg";
		}
	}
	var imagenactual=new Image;
	imagenactual.src=imagenfinal;
	imagenes.push(imagenactual);
}

function iluminaimagen(obj){
	imagenoriginal=obj.src;
	imagenfinal=imagenoriginal;
	if (imagenoriginal.indexOf(".gif")!=-1){
		if (imagenoriginal.indexOf("_o.gif")==-1){
			imagenfinal=imagenoriginal.substr(0,imagenoriginal.indexOf(".gif"))+"_o.gif";
		}
	}
	if (imagenoriginal.indexOf(".jpg")!=-1){
		if (imagenoriginal.indexOf("_o.jpg")==-1){
			imagenfinal=imagenoriginal.substr(0,imagenoriginal.indexOf(".jpg"))+"_o.jpg";
		}
	}
	obj.src=imagenfinal;
}
function apagaimagen(obj){
	imagenoriginal=obj.src;
	imagenfinal=imagenoriginal;
	if (imagenoriginal.indexOf("_o.gif")!=-1){
		imagenfinal=imagenoriginal.substr(0,imagenoriginal.indexOf("_o.gif"))+".gif";
	}
	if (imagenoriginal.indexOf("_o.jpg")!=-1){
		imagenfinal=imagenoriginal.substr(0,imagenoriginal.indexOf("_o.jpg"))+".jpg";
	}
	obj.src=imagenfinal;
}