$(document).ready(function() {
     $("#divStayTopright").css({"right":"0px","top":($(window).height()-$("#divStayTopright").height())/2 -120});
    
     $(window).scroll(function(){ 
         $("#divStayTopright").css({"top":($(window).scrollTop()+($(window).height()-$("#divStayTopright").height())/2 - 120),"display":""});
     }) ;
//     alert(($(window).height()-$("#divStayTopright").height())/2);
});
  

function showdiv(num)
{
    if(num==1)
    {
        document.getElementById("divsmall").style.display="none";
        document.getElementById("divbig").style.display="";
    }
    else
    {
        document.getElementById("divsmall").style.display="";
        document.getElementById("divbig").style.display="none";
    }
}