function formCheck(form) {

if (form.newuser_emailaddress.value == "")
{
alert("Please include your email address.");
 form.newuser_emailaddress.focus()
return false;}

if (form.newuser_emailaddress.value.indexOf("@") == -1)
{
alert("Please include a proper email address.");
 form.newuser_emailaddress.focus()
return false;}

if (form.newuser_emailaddress.value.indexOf(".") == -1)
{
alert("Please include a proper email address.");
 form.newuser_emailaddress.focus()
return false;}

}

function clear_textbox()
{
if (document.scripttips.newuser_emailaddress.value == "Enter Email Address")
document.scripttips.newuser_emailaddress.value = "";
}