function show(elementname)
{
  var elem = document.getElementById(elementname);
  if(elem != null)
  {
    elem.style.visibility = "visible";
    elem.style.display = "block";
  }
}
function hide(elementname)
{
  var elem = document.getElementById(elementname);
  if(elem != null)
  {
    elem.style.visibility = "hidden";
    elem.style.display = "none";
  }
}

var emailForm
var formdirection = 1
function OpenEmailForm()
{
  emailForm = document.getElementById('sendpage');
  formdirection = 1;
  if(emailForm != null)
  {
    emailForm.style.visibility = 'visible';
    setTimeout("ExpandEmailForm()", 20);     
  }
  return false;
}

function ExpandEmailForm()
{
  if(emailForm != null && formdirection == 1)
    {
    if(emailForm.style.marginTop == '')
    {
    emailForm.style.marginTop = '-350px';
    }
    var formHeight =  parseInt(emailForm.style.marginTop.replace('px', ''));
    
    if(formHeight < 0)
    {
      emailForm.style.marginTop = (formHeight + 10) + "px";
      setTimeout("ExpandEmailForm()", 20);  
    }
  }
}

function CollapseEmailForm()
{
  if(emailForm != null && formdirection == 0)
    {
    if(emailForm.style.marginTop == '')
    {
    emailForm.style.marginTop = '0px';
    }
    var formHeight =  parseInt(emailForm.style.marginTop.replace('px', ''));
    
    if(formHeight > -350)
    {
      emailForm.style.marginTop = (formHeight - 10) + "px";
      setTimeout("CollapseEmailForm()", 20);  
    }
    else
    {
      emailForm.style.visibility = 'hidden';
    }
  }
}


function CloseEmailForm()
{
  var emailForm = document.getElementById('sendpage');
  formdirection = 0;
  setTimeout("CollapseEmailForm()", 20);     
  
}