q1 =""
q2 = ""
q3 = ""
function selectCheck(id){
	radioCheck(id)
	if(id=="a1" || id =="a2"){
		q1 = id
		q2 = ""
		q3 = ""
		document.getElementById("r3").checked = false;
		document.getElementById("r4").checked = false;
		document.getElementById("r5").checked = false;
		document.getElementById("r6").checked = false;
		document.getElementById("r7").checked = false;
		document.getElementById("r8").checked = false;
		setlayer()
	}
	
	if(id=="a3" || id =="a4"){
		q2 = id
		q3 = ""
		document.getElementById("r5").checked = false;
		document.getElementById("r6").checked = false;
		document.getElementById("r7").checked = false;
		document.getElementById("r8").checked = false;
		setlayer()
	}
	
	if(id=="a5" || id =="a6" || id =="a7" || id =="a8"){
		q3 = id
		setlayer()
	}
}

function setlayer(){
	init()
	if(q1 !=""){
		layer_show("q2")
	}
	if(q2 !=""){
		if(q1=="a1" && q2=="a3"){
			layer_show("q3_1")
		}
		if(q1=="a1" && q2=="a4"){
			layer_show("q3_2")
		}
		if(q1=="a2" && q2=="a3"){
			answer_show()
		}
		if(q1=="a2" && q2=="a4"){
			layer_show("q3_2")
		}
	}
	
	if(q3 !=""){
		answer_show();
	}
}

function radioCheck(id){
	if(id=="a1"){
		 document.getElementById("r1").checked = true;
	}else if(id=="a2"){
		 document.getElementById("r2").checked = true;
	}else if(id=="a3"){
		 document.getElementById("r3").checked = true;	
	}else if(id=="a4"){
		 document.getElementById("r4").checked = true;	
	}else if(id=="a5"){
		 document.getElementById("r5").checked = true;	
	}else if(id=="a6"){
		 document.getElementById("r6").checked = true;	
	}else if(id=="a7"){
		 document.getElementById("r7").checked = true;
	}else if(id=="a8"){
		 document.getElementById("r8").checked = true;	
	}
}

function answer_show(){
	layer_show("arrow");
	if(q1=="a2" && q2=="a3"){
		layer_show("ans5")	
	}
	if(q1=="a1" && q2=="a3" && q3=="a5"){
		layer_show("ans1")	
	}
	if(q1=="a1" && q2=="a3" && q3=="a6"){
		layer_show("ans2")	
	}
	if(q1=="a1" && q2=="a4" && q3=="a7"){
		layer_show("ans3")	
	}
	if(q1=="a1" && q2=="a4" && q3=="a8"){
		layer_show("ans4")
	}
	if(q1=="a2" && q2=="a4" && q3=="a7"){
		layer_show("ans3")
	}
	if(q1=="a2" && q2=="a4" && q3=="a8"){
		layer_show("ans4")
	}
}

function layer_show(id){
	if(document.getElementById){
      document.getElementById(id).style.display = "block";
	}
}
function layer_hide(id){
	if(document.getElementById){
      document.getElementById(id).style.display = "none";
	}
}

$(document).ready(init);
function init(){
	layer_hide("q2");
	layer_hide("q3_1");
	layer_hide("q3_2");
	layer_hide("ans1");
	layer_hide("ans2");
	layer_hide("ans3");
	layer_hide("ans4");
	layer_hide("ans5");
	layer_hide("arrow");
	
}