function getyScroll()
 {
  yScroll = 0;

  if (window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX)
   {
    yScroll = window.innerHeight + window.scrollMaxY;
    xScroll = window.innerWidth + window.scrollMaxX;

    var deff = document.documentElement;
    var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
    var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;

    xScroll -= (window.innerWidth - wff);
    yScroll -= (window.innerHeight - hff);
   } 
  else if (document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth)
   { // all but Explorer Mac
    yScroll = document.body.scrollHeight;
    xScroll = document.body.scrollWidth;
   } 
  else 
   { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
    yScroll = document.body.offsetHeight;
    xScroll = document.body.offsetWidth;
   }

  return yScroll;
 }

function show_form(form)
 {
  alpha_screen.style.display = 'block';
  alpha_screen.style.height = getyScroll(); //window.innerHeight + window.scrollMaxY;
  form.style.display = 'block';
 }



function hideloginform()
 {
  if (document.all.loginform != null) {loginform.style.display = 'none';}
  if (document.all.add_to_friends != null) {add_to_friends.style.display = 'none';}
  if (document.all.sendform != null) {sendform.style.display = 'none';}

  //loginform.style.display = 'none';
  alpha_screen.style.display = 'none';
 }   


function show_div(name)
 {
  if (name.style.display=='none')
   {
   name.style.display = 'block';
   }else{
   name.style.display = 'none';
   } 
  } 


function hide_div(name)
 {
  name.style.display = 'none';
  alpha_screen.style.display = 'none';

 }