function showhidediv(val) {
	var stat = document.getElementById('courseid'+val).style.display;
	for(i=1;i<=17;i++) {
	document.getElementById('courseid'+i).style.display = "none";
	document.getElementById('courseidhdr'+i).className = "faq-cont-hd";
	}
	if(stat == "none") {
	document.getElementById('courseid'+val).style.display = "block";
	document.getElementById('courseidhdr'+val).className = "faq-cont-hd-minus";
	}
	}
	function wxw(val) {
	var stat = document.getElementById('courseid'+val).style.display;
	for(i=1;i<=4;i++) {
	document.getElementById('courseid'+i).style.display = "none";
	document.getElementById('courseidhdr'+i).className = "faq-cont-hd1";
	}
	if(stat == "none") {
	document.getElementById('courseid'+val).style.display = "block";
	document.getElementById('courseidhdr'+val).className = "faq-cont-hd-minus1";
	}
}