function validate_crequired(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else
    {
    return true;
    }
  }
}

function validate_cform(thisform)
{
with (thisform)

  {
  	
  	
  if (validate_crequired(name,"Please enter your name")==false)
  {name.focus();return false;}

  if (validate_crequired(contactemail,"Please enter your email")==false)
  {contactemail.focus();return false;}
  
  if (validate_crequired(sendersubject,"Please enter a subject")==false)
  {sendersubject.focus();return false;}
 
  
  
  
  
  }
  
}