$(document).ready(function() {
	$('#subBtn').click(function() {
		
		var arr = ["#authorName","#authorEmail", "#authorComment"];			
		var allOk = true;
		
		for (var i=0; i < arr.length; i++) {
			if($(arr[i]).val() == ""){
				$(arr[i]).css('border', '2px solid red');
				allOk = false;
			}else{
				$(arr[i]).css('border', '1px solid #333333');
			}
		};
		
		var email = $("#authorEmail").val();
		var atPos = email.indexOf("@",1);
		var periodPos = email.indexOf(".", atPos);
		
		if(email !=""){
		
			if(atPos == -1){
				$('#authorEmail').css('border', '2px solid red');
				allOk = false;
			}else if(email.indexOf("@",atPos+1)!=-1){
				$('#authorEmail').css('border', '2px solid red');
				allOk = false;
			}else if(periodPos == -1){
				$('#authorEmail').css('border', '2px solid red');
				allOk = false;
			}else if(periodPos+3>email.length){
				$('#authorEmail').css('border', '2px solid red');
				allOk = false;
			}	
			
		}
		
		return allOk;
	
	});
});