/*Funcion Java Script que permite la presentacion de una 
pagina web en una pantalla window*/

//******************************************
var win = null;
var cerrarWindow = null;

function NewWindow(mypage,myname,w,h,scroll)
{
   LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
   TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
   settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable=0'
   win = window.open(mypage,myname,settings)
}
function cerrarVentana(page)
{
    cerrarWindow = window.close(page);				
}
function Volver()
{
		history.back();		
}