function checkEmail(obj)
{
  var email = obj.value;
  if(email != 0)
  {
    if(isValidEmailAddress(email))
    {
      jQuery("#validEmail").css({"background-image": "url('/DesktopModules/SubForm/Images/validYes.png')"});
    } 
    else 
    {
      jQuery("#validEmail").css({"background-image": "url('/DesktopModules/SubForm/Images/validNo.png')"});
    }
  }
  else 
  {
    jQuery("#validEmail").css({"background-image": "none"});
  }
} 

function checkURL(obj)
{
  var url = obj.value;
  if(url != 0)
  {  
    if(isValidURL(url))
    {
      jQuery("#validURL").css({"background-image": "url('/DesktopModules/SubForm/Images/validYes.png')"});
    } 
    else 
    {
      jQuery("#validURL").css({"background-image": "url('/DesktopModules/SubForm/Images/validNo.png')"});
    }
  }
  else 
  {
    jQuery("#validURL").css({"background-image": "none"});
  }
} 

function checkName(obj)
{
  var name = obj.value;
  if(name != "Name")
  {
    if(name != "")
    {
      jQuery("#validName").css({"background-image": "url('/DesktopModules/SubForm/Images/validYes.png')"});
    } 
    else 
    {
      jQuery("#validName").css({"background-image": "url('/DesktopModules/SubForm/Images/validNo.png')"});
    }
  }
  else 
  {
    jQuery("#validName").css({"background-image": "none"});
  }
}    
    
function clearTextbox(obj)
{
  obj.value="";
}
    
function isValidEmailAddress(emailAddress) 
{
  var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
  return pattern.test(emailAddress);
}

function isValidURL(url)
{
  var pattern = new RegExp("^(http[s]?://|ftp://)(www\.)?[a-zA-Z0-9-\.]+\.[a-zA-Z0-9-\.]");
  return pattern.test(url);
}