// JavaScript Document

	var questions = ["ques_1", "ques_2", "ques_3", "ques_4", "ques_5", "ques_6", "ques_7" , "ques_8" , "ques_9" , "ques_10" , "ques_11" , "ques_12" , "ques_13" , "ques_14" , "ques_15" , "ques_16" , "ques_17" , "ques_18" , "ques_19" , "ques_20" , "ques_21"];
	var responses = ["res_1", "res_2", "res_3", "res_4", "res_5", "res_6", "res_7" , "res_8" , "res_9" , "res_10" , "res_11" , "res_12" , "res_13" , "res_14" , "res_15" , "res_16" , "res_17" , "res_18" , "res_19" , "res_20" , "res_21"];
	
	window.onload = function () {
		for (i=0; i<responses.length; i++) {
			document.getElementById(responses[i]).style.display = "none";
		}
		for (i=0; i<questions.length; i++) {
			var el = document.getElementById(questions[i]);
			el.id = i;
			el.onclick = function () {
				for (i=0; i<responses.length; i++) {
					document.getElementById(responses[i]).style.display = "none";
				}
				document.getElementById(responses[this.id]).style.display = "block";
			}
		}
	}