//Javascript;
	
	var tellphone = /^[0-9]{3}[0-9-]{2}[0-9][0-9]+$/;
	
	document.getElementById("btn_submit").onclick = function() {
		var postting = 0;
		if( document.saveform.subuser.value == '' ) {
			document.getElementById("msg_name").innerHTML = "Please enter your name.";
			postting = postting + 1;
		} else {
			document.getElementById("msg_name").innerHTML = "";
		}
		if( document.saveform.subtell.value == '' ) {
			document.getElementById("msg_tell").innerHTML = "Please enter your telphone.";
			postting = postting + 1;
		} else {
			if(!tellphone.test(document.saveform.subtell.value)){
				document.getElementById("msg_tell").innerHTML = "Your telphone incorrect format.";
			} else {
				document.getElementById("msg_tell").innerHTML = "";
			}
		}
		if( document.saveform.subemail.value == '' ) {
			document.getElementById("msg_email").innerHTML = "Please enter your e-mail address.";
			postting = postting + 1;
		} else {
			if( document.saveform.subemail.value.indexOf('@') == -1 && document.saveform.subemail.value.indexOf('.') == -1 ){
				document.getElementById("msg_email").innerHTML = "Your e-mail address incorrect format.";
				postting = postting + 1;
			} else {
				document.getElementById("msg_email").innerHTML = "";
			}
		}
		if( document.saveform.subcontent.value == '' ) {
			document.getElementById("msg_content").innerHTML = "Please enter your feedback content.";
			postting = postting + 1;
		} else {
			document.getElementById("msg_content").innerHTML = "";
		}
		if( postting == 0 ) {
			document.saveform.action = "tblsave.php?action=save";
			document.saveform.submit();
		}
	}