function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@")
dotpos=value.lastIndexOf(".")
if (apos<1||dotpos-apos<2) 
  {alert(alerttxt);return false}
else {return true}
}
}

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_email(e,"Please enter a vaild email!")==false)
  {e.focus();return false}
if (validate_required(n,"Name must be filled out!")==false)
  {n.focus();return false}
if (validate_required(ct,"Message must be filled out!")==false)
  {ct.focus();return false}  
if (validate_required(et,"Type must be filled out!")==false)
  {et.focus();return false} 
}
}