function validate_survey()
{
	
	var err_msg = "All fields must be completed.";
	var wasAnswered = true;
	
	var skate_brand  = document.survey.skate_brand.value;
	var helmet_brand = document.survey.helmet_brand.value;
	var stick_brand  = document.survey.stick_brand.value;
	var team         = document.survey.team.value;
	var comments     = document.survey.comments.value;
	
	if(skate_brand == "-")
	{
		wasAnswered = false;
	}
	
	if(helmet_brand == "-")
	{
		wasAnswered = false;
	}
	
	if(stick_brand == "-")
	{
		wasAnswered = false;
	}
	
	if(team == "-")
	{
		wasAnswered = false;
	}
	
	//if all questions have been answered, proceed.
	if(wasAnswered)
	{
		var queryString = "?";
		queryString += "skate_brand=" + skate_brand + "&";
		queryString += "helmet_brand=" + helmet_brand + "&";
		queryString += "stick_brand=" + stick_brand + "&";
		queryString += "team=" + team + "&";
		queryString += "comments=" + comments;
		
		var windowHeight = 200;
		var windowWidth = 320;
		var windowLeft = (window.screen.width / 2) - (windowWidth / 2);
		var windowTop = (window.screen.Height / 2) - (windowHeight / 2);
		
		var windowOptions = "height="+windowHeight+",width="+windowWidth+",left="+windowLeft+",top="+windowTop+",toolbar=no,status=no,scrollbars=no";
		
		window.open("include/processSurvey.php" + queryString,"processSurvey",windowOptions);
		document.survey.reset();
	}
  else
  {
  	alert(err_msg);
  }
}