function clearall() {
	 document.getElementById('sub1').style.display = "none";
	 document.getElementById('sub2').style.display = "none";
	 document.getElementById('sub3').style.display = "none";
	 document.getElementById('sub4').style.display = "none";
	 document.getElementById('sub5').style.display = "none";
	 document.getElementById('sub6').style.display = "none";
 }

 function show(cucc) {
	 document.getElementById(cucc).style.display = "block";
 }

 function hide(cucc) {
	 document.getElementById(cucc).style.display = "none";
 }