function checkForm(){
		
		var error = false;
		
		if(! document.getElementById('name').value){
			document.getElementById('nameStar').style.visibility = "visible";
			error = true;
		}
		else{
			document.getElementById('nameStar').style.visibility = "hidden";		
		}
		
		if(! document.getElementById('email').value){
			document.getElementById('emailStar').style.visibility = "visible";
			error = true;
		}
		else{
			document.getElementById('emailStar').style.visibility = "hidden";		
		}
		
		if(! document.getElementById('spam').value){
			document.getElementById('spamStar').style.visibility = "visible";
			error = true;
		}
		else{
			document.getElementById('spamStar').style.visibility = "hidden";		
		}
		
		if(! document.getElementById('message').value){
			document.getElementById('messageStar').style.visibility = "visible";
			error = true;
		}
		else{
			document.getElementById('messageStar').style.visibility = "hidden";		
		}
		
		
		if(error){
			document.getElementById('errorStar').style.visibility = "visible";
			
			return false;
		}
		else{
			return true;
		}
		
		
	}