function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false;}
else {return true}
}
}function validate_form(thisform)
{
with (thisform)
{
if (validate_required(Name,"Name must be filled out!")==false)
  {Name.focus();return false;}

if (validate_required(Telephone,"Telephone number must be filled out!")==false)
  {Telephone.focus();return false;}

if (validate_required(Email,"Email must be filled out!")==false)
  {Email.focus();return false;}
 
if (validate_required(Comments,"Please do not forget to leave a message or leave comments")==false)
  {Comments.focus();return false;}
  

}
}