function showdiv(area,id) {
	//alert(area);
	//return false;
	var tabArea = document.getElementById(area);
	var contents = tabArea.childNodes;
	for (i=0; i<contents.length; i++) {
		if (contents[i].className=='tabContent') { contents[i].style.display = 'none';}
	}
	document.getElementById(id).style.display = '';

	var tabs = document.getElementById(area+'Tabs').getElementsByTagName('a');
	for (i=0; i<tabs.length; i++) { tabs[i].className = ''; }
	document.getElementById('tab'+id).className = 'thisTab';
}

function secBoardL(n)
{
  var secTableL=document.getElementById("secTableL");
  var mainTableL=document.getElementById("mainTableL");
  
  for(i=0;i<secTableL.cells.length;i++)
    secTableL.cells[i].className="sec1_1";
  secTableL.cells[n].className="sec2_1";
  for(i=0;i<mainTableL.tBodies.length;i++)
    mainTableL.tBodies[i].style.display="none";
  mainTableL.tBodies[n].style.display="block";
}