function chgNewsbgOn( elm ) {
	var item = $('news' + elm);
	Element.addClassName(item, "dlnewsOn");
}

function chgNewsbgOff( elm ) {
	var item = $('news' + elm);
	//alert(item);
	//Element.addClassName(item, "dlnews");
	Element.removeClassName(item, "dlnewsOn");
}

function chgNewsListbgOn( elm ) {
	var item = $('news' + elm);
	Element.addClassName(item, "newsListDtOn");
}

function chgNewsListbgOff( elm ) {
	var item = $('news' + elm);
	//Element.addClassName(item, "dlnews");
	Element.removeClassName(item, "newsListDtOn");
}

function switchArea( elm ) {
	document.getElementById('areaRead' + elm).style.display = 'block';
}

function seltab(bpref, hpref, id_max, selected) {
  if (! document.getElementById) return;
  for (i = 0; i <= id_max; i++) {
    if (! document.getElementById(bpref + i)) continue;
    if (i == selected) {
      document.getElementById(bpref + i).style.display = "block";
	  document.getElementById(hpref + i).className = "areaSelect";
	  //document.getElementById(hpref + i).className = "areaOn";
      //document.getElementById(bpref + i).style.position = "";
      //document.getElementById(hpref + i).className = "open";
    } else {
      document.getElementById(bpref + i).style.display = "none";
	  document.getElementById(hpref + i).className = "hoge";
	  //document.getElementById(hpref + i).className = "hoge";
      //document.getElementById(bpref + i).style.position = "absolute";
      //document.getElementById(hpref + i).className = "close";
    }
  }
}