// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults


function scrolldiv(v,contentid,containerid) {
  var scrollsize = Element.getHeight($(contentid)) - Element.getHeight($(containerid));
  var marge = scrollsize*v;
  $(contentid).style.marginTop='-'+marge+'px';
}

function clickup(i) {
  $('handle2').style.top='0px';
  scrolldiv(0,'scroll'+i+'Content','scroll'+i+'Container');
}

function clickdown(i) {
  var scrollsize = Element.getHeight($('scroll'+i+'Content')) - Element.getHeight($('scroll'+i+'Container'));
  $('handle2').style.top=(Element.getHeight($('track'+i))-45)+'px';
  scrolldiv(1,'scroll'+i+'Content','scroll'+i+'Container');
}