function submitEmail() {
	var pattern=/^(([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}){0,1}$/i;
	var frm_name = document.getElementById("frm_name").value;
	var frm_company = document.getElementById("frm_company").value;
	var frm_email = document.getElementById("frm_email").value;
	var frm_telephone = document.getElementById("frm_telephone").value;
	var frm_booking_ref_no = document.getElementById("frm_booking_ref_no").value;
	var frm_detail = document.getElementById("frm_detail").value;
	if(frm_name.length > 0 && frm_email.length > 0 && frm_telephone.length > 0 && frm_detail.length > 0){
		if(!pattern.test($("#frm_email").val())){
				alert(" Please input your correct email.");
				$("#frm_email").focus();
				return false;
		}else if($("#frm_telephone").val().length<9) {
				alert(" Please input your telephone number more than 9 digits.");
				$("#frm_telephone").focus();
				return false;
		}
		else {
		var now_date = new Date();
		//document.getElementById("submit_button").style.display = "none";
		document.getElementById("status_area").innerHTML = "<span class=\"contact_txt3\">Sending, please wait...</span>";
		$.ajax({
			type: "POST",
			url: "contactus_form_submit.aspx",
			data: "cmd=contact_us&frm_name=" + escape(frm_name) + "&frm_company=" + escape(frm_company) + "&frm_email=" + escape(frm_email) + "&frm_telephone=" + escape(frm_telephone) + "&frm_booking_ref_no=" + escape(frm_booking_ref_no) + "&frm_detail=" + escape(frm_detail) + "&t=" + now_date.getTime() + Math.random(),
			success: function(msg){
				document.getElementById("status_area").innerHTML = "";
				alert(msg);
			}
		});
		}
	} else {
		 if($("#frm_name").val()=="") {
			alert(" Please input your name.");
			$("#frm_name").focus();

		}else if($("#frm_email").val()=="") {
			alert(" Please input your email.");
			$("#frm_email").focus();

		}else if($("#frm_telephone").val()=="") {
			alert(" Please input your telephone number.");
			$("#frm_telephone").focus();

		}
		else if($("#frm_detail").val()=="") {
				alert(" Please input your Inquiry detail.");
				$("#frm_detail").focus();
		}
		return false;
		}		
}