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	//check for no radio selected	for (i=0;i<=frm.q.length;i++) {		if (frm.q[i].checked) {			submitted_answers.push(frm.q[i].value);			show_feedback(current_question);			for(x=1;x<=3;x++)			{				document.getElementById("q"+current_question+"_"+x).style.display="none";			}			break		}	}