function check_email(email){
	invalidChars = " /:,;"
	if (email == "") {
		return true
	}
	for (i=0; i<invalidChars.length; i++) {	
		badChar = invalidChars.charAt(i)
		if (email.indexOf(badChar,0) > -1) {
			return false
		}
	}
	atPos = email.indexOf("@",1)
	if (atPos == -1) {
		return false
	}
	if (email.indexOf("@",atPos+1) != -1) {
		return false
	}
	periodPos = email.indexOf(".",atPos)
	if (periodPos == -1) {					
		return false
	}
	if (periodPos+3 > email.length)	{		
		return false
	}
	return true;
}

function send(){
	if (document.getElementById("comments").value.replace(/^\s+|\s+$/g,"") == ''){
		alert('Please enter your message.');
		document.getElementById("comments").focus();
		return false;
	}else if (document.getElementById("username").value.replace(/^\s+|\s+$/g,"") == ''){
		alert('Please enter your name.');
		document.getElementById("username").focus();
		return false;
	}else if ( (!check_email(document.getElementById("useremail").value)) || (document.getElementById("useremail").value.replace(/^\s+|\s+$/g,"") == '') )	{
		alert('Please enter a valid email address.');
		document.getElementById("useremail").focus();
		return false; 
	}else{
		//document.getElementById('contactUsForm').submit();
		return true;
	}
}