function checkContactForm() {
	var valid = 1;
	var errorMsg = document.getElementById("error");
	if(!document.getElementById("realname").value) {
		document.getElementById("realname").parentNode.style.backgroundPosition = "0 100%";
		errorMsg.style.display = "block";
		valid = 0;
	}
	else {document.getElementById("realname").parentNode.style.backgroundPosition = "0 0";}
	if(!document.getElementById("email").value) {
		document.getElementById("email").parentNode.style.backgroundPosition = "0 100%";
		errorMsg.style.display = "block";
		valid = 0;
	}
	else {document.getElementById("email").parentNode.style.backgroundPosition = "0 0";}
	if(!document.getElementById("subject").value) {
		document.getElementById("subject").parentNode.style.backgroundPosition = "0 100%";
		errorMsg.style.display = "block";
		valid = 0;
	}
	else {document.getElementById("subject").parentNode.style.backgroundPosition = "0 0";}
	if(!document.getElementById("message").value) {
		document.getElementById("message").parentNode.style.backgroundPosition = "0 100%";
		errorMsg.style.display = "block";
		valid = 0;
	}
	else {document.getElementById("message").parentNode.style.backgroundPosition = "0 0";}
	if(valid == 0) {return false;}
	errorMsg.style.display = "none";
	return true;
}
function checkCommentForm() {
	var valid = 1;
	if(!document.getElementById("author").value) {
		document.getElementById("author").parentNode.style.backgroundPosition = "0 100%";
		valid = 0;
	}
	else {document.getElementById("author").parentNode.style.backgroundPosition = "0 0";}
	if(!document.getElementById("email").value) {
		document.getElementById("email").parentNode.style.backgroundPosition = "0 100%";
		valid = 0;
	}
	else {document.getElementById("email").parentNode.style.backgroundPosition = "0 0";}
	if(!document.getElementById("comment").value) {
		document.getElementById("comment").parentNode.style.backgroundPosition = "0 100%";
		valid = 0;
	}
	else {document.getElementById("comment").parentNode.style.backgroundPosition = "0 0";}
	if(valid == 0) {return false;}
	return true;
}