function hide(content_area)
{
    $('#' + content_area).hide('fast');
  }
function show(content_area)
{
  $('#' + content_area).show('fast');
}
function myPopup(url,windowname,w,h,x,y){
window.open(url,windowname,"resizable=yes,toolbar=no,scrollbars=no,menubar=no,status=no,directories=no,width="+w+",height="+h+",left="+x+",top="+y+"");
}