//屏蔽js错误
function resumeerror() {
  return true;
  }
window.onerror = resumeerror;
//在新窗口中打开链接
function externallinks() {
  if (!document.getElementsByTagName) return;
  var anchors = document.getElementsByTagName("a");
  for (var i=0; i<anchors.length; i++) {
    var anchor = anchors[i];
    if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")anchor.target = "_blank";
    }
  }
window.onload = externallinks;
//搜索限制
function dosubmit(obj) {
  if (obj.key.value != '' && obj.key.value != '在此搜索信息 …') {
    var keywords = obj.key.value.split(' ');
    var validkeyword = 0;
    for(key in keywords) {
      keyword = keywords[key];
      keyword = keyword.replace(/^\\s+|\\s+$/g,'');
      if (keyword.length >= 2) {
        validkeyword += 1;
        }
      }
      if (validkeyword <= 0) {
        alert('用于搜索的关键词不得少于2个字符!\n\n请再次尝试 …');
        return false;
		} else {
        return true;
		}
        } else {
        alert('您必须输入关键词后才能进行搜索!\n\n请再次尝试 …');
      return false;
      }
    }
//文章字体大小控制
function t(n){
  document.getElementById("artct").style.fontSize=n+"px";
  }
//收藏
function addfavorite(url,tt) {
  if (document.all) {
    window.external.addFavorite(url,tt);
    }else if (window.sidebar) {
    window.sidebar.addPanel(tt,url, "");
    }
  }