function checkSubmit(form) {
	if(form.first_name.value.length==0 || !isNaN(form.first_name.value)){
		alert("Please enter your first name.");
		form.first_name.focus();
		return false;
	}
	if(form.last_name.value.length==0 || !isNaN(form.last_name.value)){
		alert("Please enter your last name.");
		form.last_name.focus();
		return false;
	}
	var regPhone = /^(?:\([2-9]\d{2}\)\ ?|[2-9]\d{2}(?:\-?|\ ?|\.?))[2-9]\d{2}[- .]?\d{4} ?$|^(?:\([2-9]\d{2}\)\ ?|[2-9]\d{2}(?:\-?|\ ?|\.?))[2-9]\d{2}[- .]?\d{4} *x\d*$/; 
	if (!form.phone.value.match(regPhone)) {
		alert("Please enter a valid phone number.");
		form.phone.focus();
		return false;
	}
	var regEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!form.email.value.match(regEmail)) {
		alert("Please enter a valid email address.");
		form.email.focus();
		return false;
	}
}

function checkSubmitBO(form) {
	if(form.login.value=="") {
		alert("Please enter your username.");
		form.login.focus();
		return false;
	}
	if(form.password.value=="") {
		alert("Please enter your password.");
		form.password.focus();
		return false;
	}
	return true;
}

function checkSubmitLeadbot(form) {
	if(form.email.value=="") {
		alert("Please enter your email address.");
		form.email.focus();
		return false;
	}
	if(form.password.value=="") {
		alert("Please enter your password.");
		form.password.focus();
		return false;
	}
	return true;
}