// JavaScript Document
function checkForm(contactForm){
if(contactForm.txtLastName.value == "" || contactForm.txtLastName.value == null)
{
alert("Please enter a value for the \"Last Name\" field.");
contactForm.txtLastName.focus();
return(false);
}
if(contactForm.txtPhone.value == "" || contactForm.txtPhone.value == null)
{
alert("Please enter a value for the \"Phone\" field.");
contactForm.txtPhone.focus();
return(false);
}
if (contactForm.txtPhone.value.length < 12)
{
alert("Phone is invalid");
contactForm.txtPhone.focus();
return (false);
}
if(contactForm.txtEmail.value == "" || contactForm.txtEmail.value == null)
{
alert("Please enter a value for the \"Email\" field.");
contactForm.txtEmail.focus();
return(false);
}
if (contactForm.txtEmail.value.indexOf("@") == -1 || contactForm.txtEmail.value.indexOf(".") == -1 )
{
alert("E-mail address is invalid");
contactForm.txtEmail.focus();
return (false);
}
else{
return(true);
}
}