var screenWidth = window.screen.availWidth;
var screenHeight = window.screen.availHeight;

var wm_step = 5;
var wm_delay = 1000;

var x_pos = screenWidth - 115;
var y_pos = 0;

var dir = 1; // 0 for up , 1 for down

el = document.getElementById('floatLayer');
			  
el.style.position = 'absolute';
el.style.posLeft = x_pos;
el.style.posTop = y_pos;

function positionChange()
{
  if(dir == 0)
  {
    y_pos = y_pos - wm_step;
  }
  else
  {
    y_pos = y_pos + wm_step;
  }

  height = document.body.clientHeight;
  offset = el.offsetHeight;

  el.style.posLeft = document.body.clientWidth - 115;
  el.style.posTop  = y_pos + document.body.scrollTop;

  if(y_pos < 0)
  {
    dir = 1;
    y_pos = 0;
  }

  if(y_pos >= (height - offset))
  {
    dir = 0;
    y_pos = (height - offset);
  }

}

function isLoading()
{
  isLooping();
}


function isLooping()
{
  positionChange();
  wm_move = setTimeout('isLooping()' , wm_delay);
}

isLoading();