win = null;
function AbrirVentana(PsPagina,PsNombre,w,h,scroll){

	var LeftPosition,TopPosition;
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2-25 : 0;	
	propiedades ='Height='+h+',Width='+w+',Top='+TopPosition+',Left='+LeftPosition+',scrollbars='+scroll

	win = window.open(PsPagina,PsNombre,propiedades)
	if(win.window.focus){win.window.focus();}
}


function AbrirVentanaBene(PsPagina,PsNombre){

	var LeftPosition,TopPosition, w, h , scroll;
	w='600' ; 
	h='350' ; 
	scroll = 'no'; 
	resizable = '1';
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2-25 : 0;	
	
	propiedades ='Height='+h+',Width='+w+',Top='+TopPosition+',Left='+LeftPosition+',scrollbars='+scroll+',resizable='+resizable
	win = window.open(PsPagina,PsNombre,propiedades)
	if(win.window.focus){win.window.focus();}
}