//处理问题的函数, handler为回调
function handle_question(handler, question)
{
	return handler(question);
}

//显示试题默认处理函数
function render_question(question, container, c)
{
	c = c || '';
	var con = $('#' + container);
	var html = '';
	var ay = new Array();
	var len = question.length;
	var a_len = 0;
	var q = null;
	var a = null;
	var i = 0;
	var j = 0;
	var q_type = '';
	var q_no = '';
	var q_display = '';
	var a_no = '';
	var a_val = '';
	var a_ele_name = '';	
	var a_ele_id = '';

	for (i = 0; i < len; ++ i){
		q = question[i];		
		q_type = q.q_type;
		q_no = q.q_no;
		q_real_no = q.q_real_no;
		q_display = q.q_display;
		a = q['answer'];
		a_len = a.length;
		ay.push("<div id='q_div_" + i +"' class='" + c + "' q_no='" + q_no +"' q_display='" + q_display + "' q_real_no='" + q_real_no + "' q_type='" + q_type +"'>");
		ay.push(	"<p id='p_quest_title'>" + q_no + "." + q.q_display +  "</p>");
		for (j = 0; j < a_len; ++ j){
			switch(q_type){
				case 'radio':
				case 'checkbox':
				{
					a_ele_name = "quest_" + q.q_no;
					a_ele_id = a_ele_name + "_ans_" + a[j].a_no; 
					a_no = a[j].a_no;
					a_value = a_ele_id;
					ay.push("<div>");
					ay.push(	"<span class='p_ans_no'>" + a_no + ")</span>"); 
					ay.push(	"<input type='" + q_type +"' name='" + a_ele_name + "' id='" + a_ele_id + "' value='" + a_value + "' a_no='" + a_no + "'/>");
					ay.push(	"<label for='" + a_ele_id +"'>" + a[j].a_display + "</label>");
					ay.push("</div>")
					break;
				}
				case 'textarea':
				{
					ay.push("<div q_type='" + q_type + "'><textarea name='" + a_ele_name + "id='" + a_ele_id + "'/></div>");
					break;
				}
			}
		}
		ay.push("</div>");
	}
	html = ay.join(" ");
	con.html(html);
}
//显示试题处理函数,handler为回调函数
function display_question(handler, question, container, c)
{
	handler(question, container, c);
}

//获取答案默认处理函数
function create_answer(container, c)
{
	var ay = [];
	var q = null;	
	var q_no= '';
	var q_display = '';
	var q_type = '';
	var a_no=''
	var a_display = '';
	var a_value='';
	var a_checked_no = '';
	var ele_label = null;

	var q_idx = -1;
	
	$('.' + c).each(function(idx, obj){
		q_no = $(obj).attr('q_no');
		q_display = $(obj).attr('q_display');
		q_type = $(obj).attr('q_type');
		q_real_no = $(obj).attr('q_real_no');
		var answer = [];
		var flag = false;
		if (q_type == 'checkbox' || q_type == 'radio'){
			//遍历input
			($('div input:checked', obj)).each(function(idx, ele){
				a_no = $(ele).attr('a_no');
				ele_label = ele.nextSibling;
				if (ele_label.tagName != 'label'){
					ele_label = ele_label.nextSibling;
				}
				a_display = ele_label.innerHTML;
				a_value = $(ele).attr('value');
				a_checked_no = a_no;
				var a = {a_no:a_no, a_display:a_display, a_value:a_value, a_checked_no:a_checked_no};
				answer.push(a);
				flag = true;
			});
			//判断没有选择答案处理
			if (flag != true && q_idx == -1){
				q_idx = idx + 1;//设置没答题的题号
			}
			q = {q_no:q_no, q_display:q_display, q_type:q_type, q_real_no:q_real_no, answer:answer};
		}
		else{
			($('div textarea', obj)).each(function(idx, ele){
				a_value = ele.value;
				var a = {a_no:'', a_display:'', a_value:a_value, a_checked_no:''};
				answer.push(a);
				//判断没有填写答案处理
				if (a_value == '' && q_idx == -1){
					q_idx = idx + 1;//设置没答题的题号
				}
			});
			q = {q_no:q_no, q_display:q_display, q_type:q_type, q_real_no:q_real_no, answer:answer};
		}
		ay.push(q);
	});
	return {ansdata:ay, tip_idx:q_idx};
}

//获取答案 handler为回调函数
function get_answer_data(handler, container, c)
{
	return handler(container, c);
}