function validate_question()
{
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	var vistior_name=document.getElementById('visitor_name').value;
	var email=document.getElementById('email').value;
	var country=document.getElementById('country').value;
	var title=document.getElementById('title').value;
	var question =document.getElementById('question').value;

	var message="";
	if(vistior_name=="")
	{
		message+=ENTER_NAME+"\n";
	}
	if(email=="")
	{
		message+=ENTER_EMAIL_PLEASE+"\n";
	}
	else
	{
		if (!filter.test(email))
	{
			message+=INVALID_EMAIL+"\n";
	}
	}
	if(country=="none")
	{
		message+=CHOOSE_COUNTRY+"\n";
	}
	if(title=="")
	{
		message+=ENTER_QUESTION_TITLE+"\n";
	}
	if(question=="")
	{
		message+=ENTER_QUESTION+"\n";
	}
	else  if(question.length>750)
        {
			message+=QUESTION_MAX_CHAR+"\n";
		}
	if(message=="")
	{
		return true;
	}
	else
	{
		alert(message);
		return false;
	}
}

function getQuestions(type,catId)
{
		
	var http = false;
	if(navigator.appName == "Microsoft Internet Explorer")
	{
		http = new ActiveXObject("Microsoft.XMLHTTP");
	} else
	{
		http = new XMLHttpRequest();
	}
//	alert(catId);
	http.open("GET", "ajax/questions.php?type="+type+"&catId="+catId, true);

	http.onreadystatechange=function()
	{
		if(http.readyState == 4)
		{
//			alert(http.responseText);
			document.getElementById('questions_div').innerHTML= http.responseText;			
		}
	}

	http.send(null);
}