function valid_contactus()
{
	var emailPat = /^[A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)*[@][A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)+$/
	var matchArray = frmCont.txt_email.value.match(emailPat);
	if(document.frmCont.txt_firstname.value == "")
	{
		alert("Please enter the first name.");
		document.frmCont.txt_firstname.focus();
		return false;
	}
	if(document.frmCont.txt_lastname.value == "")
	{
		alert("Please enter the last name.");
		document.frmCont.txt_lastname.focus();
		return false;
	}
	if(document.frmCont.txt_email.value=="")
	{
		alert("Please enter the email address");
		document.frmCont.txt_email.focus();
		return false;
	}
	else
	{
		if (matchArray == null)
		{
			alert ("Please enter your valid email address.");
			document.frmCont.txt_email.focus();
			return false;
		}
	}
	if(document.frmCont.txt_comment.value=="")
	{
		alert("Please enter the comment");	
		document.frmCont.txt_comment.focus();
		return false;
	}
}
function valid_make_an_appointment()
{
	var emailPat = /^[A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)*[@][A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)+$/
	var matchArray = document.frm.txt_email.value.match(emailPat);
	if(document.frm.txt_first_name.value=="")
	{
		alert("Please enter the first name.");
		document.frm.txt_first_name.focus();
		return false;
	}
	if(document.frm.txt_surname.value=="")
	{
		alert("Please enter the surname.");
		document.frm.txt_surname.focus();
		return false;
	}
	if(document.frm.txt_email.value=="")
	{
		alert("Please enter the email address");
		document.frm.txt_email.focus();
		return false;
	}
	else
	{
		if (matchArray == null)
		{
			alert ("Please enter your valid email address.");
			document.frm.txt_email.focus();
			return false;
		}
	}
	if(document.frm.txt_comment.value=="")
	{
		alert("Please enter the comment.");
		document.frm.txt_comment.focus();
		return false;
	}
}
function valid_gp_referral_form()
{
	var emailPat = /^[A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)*[@][A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)+$/
	var matchArray = Frm_gp_ref.txt_email.value.match(emailPat);
	if(document.Frm_gp_ref.txt_patient_name.value=="")
	{
		alert("Please enter the patient name.");
		document.Frm_gp_ref.txt_patient_name.focus();
		return false;
	}
	if(document.Frm_gp_ref.txt_email.value=="")
	{
		alert("Please enter the email address");
		document.Frm_gp_ref.txt_email.focus();
		return false;
	}
	else
	{
		if (matchArray == null)
		{
			alert ("Please enter your valid email address.");
			document.Frm_gp_ref.txt_email.focus();
			return false;
		}
	}
	if(document.Frm_gp_ref.txt_comment.value=="")
	{
		alert("Please enter the comment.");
		document.Frm_gp_ref.txt_comment.focus();
		return false;
	}
}

function valid_ask_me_question()
{
	var emailPat = /^[A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)*[@][A-Za-z0-9_\-]+([.][A-Za-z0-9_\-]+)+$/
	var matchArray = document.frm.txt_email.value.match(emailPat);
	if(document.frm.txt_your_name.value=="")
	{
		alert("Please enter your name.");
		document.frm.txt_your_name.focus();
		return false;
	}
	if(document.frm.txt_email.value=="")
	{
		alert("Please enter the email address");
		document.frm.txt_email.focus();
		return false;
	}
	else
	{
		if (matchArray == null)
		{
			alert ("Please enter your valid email address.");
			document.frm.txt_email.focus();
			return false;
		}
	}
	if(document.frm.txt_comment.value=="")
	{
		alert("Please enter the comment.");
		document.frm.txt_comment.focus();
		return false;
	}
}