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_form(thisform)

{with (thisform)

{if (validate_email(email,"Please enter a valid email address!")==false)

{email.focus();return false;}}}