function validate_p_blog(blog) {
	error = 'Felaktigt fält: ';
	if(document.getElementById('name_' + blog).value == '') {
		alert(error + "Namn");
		document.getElementById('name_' + blog).focus();
		return false;
	}
	if(document.getElementById('email_' + blog).value.match(/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/) == null && document.getElementById('email_' + blog).value != ""){
		alert(error + "E-post");
		document.getElementById('email_' + blog).focus();
		return false;
	}
	if(document.getElementById('comment_' + blog).value == '') {
		alert(error + "Kommentar");
		document.getElementById('comment_' + blog).focus();
		return false;
	}
	return true;
}