function MM_openBrWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}

function kada_AutoResWindow(theURL,winName,width,height,features) { 

	if(window.screen){
		per_ancho=(width/800)*100;//porcentaje screen-ancho
		per_alto=(height/width)*100;//porcentaje de ancho-alto
		win_ancho=(screen.width*per_ancho)/100;//ancho de la ventana
		win_alto=(win_ancho*per_alto)/100;//alto de la ventana
		x=(screen.width-win_ancho)/2;//centra x
		y=(screen.height-win_alto)/2;//centra y
	}else{// si el buscador es 4-- queda todo igual :(
		x=0;
		y=0;
		win_ancho=w;
		win_alto=y;
	}
	winfeatures=("top="+y+",left="+x+",width="+win_ancho+",height="+win_alto+","+features);
	window.open(theURL,winName,winfeatures);
}