var nume=1;
function abrir(im,ancho,alto){
	altoi=alto+20;
	anchoi=ancho+20;
	features = "width="+anchoi+",height="+altoi+",top="+(screen.height-alto)/2+",left="+(screen.width-ancho)/2;	
	ventana="ventana"+nume;
	ventana=window.open(im,"_blank",features);
	ventana.document.title="MARMOLERĶAS GUMEN";
	window.cursor='default';
	nume=nume+1;
}