common.js

news新闻系统. news新闻系统 news新闻系统

String.prototype.trim = function() { return this.replace(/(^\s*)|(\s*$)/g,""); }

function Img(src)
{
    this.preload = function()
    {
        var new_img = new Image();
        new_img.src = this.getSrc();
    }
    this.get = function()
    {
        return "<img src=\"" + this.getSrc() + "\" />";
    }
    this.getSrc = function()
    {
        return this.src;
    }

    this.src = src;
    this.preload();
}


/**
 *
 *
 */
function preloadImage(mix)
{
    if(typeof mix == 'string')
    {
        new Image().src = mix;
    }
    else
    {
        for(var i in mix)
        {
            new Image().src = mix[i];
        }
    }
}

/**
 * 获取文件扩展名
 * dellker.com 2007-10-31
 * wkkes.com 2008-9-3 17:44
*/
function getFileext(sFile, bToLower) {
  if(! sFile) {
    return null;
  } else {
    var a = sFile.split('.');
    if(a.length>0) {
      return bToLower === true ? a[a.length-1].toLowerCase() : a[a.length-1];
    } else {
      return null;
    }
  }
}


/**
 * 加入收藏夹方法
 * 兼容 FF & IE
*/
function addFavorite(sURL, sTitle) {
  try {
    window.external.addFavorite(sURL, sTitle);
  } catch(e) {
    try {
      window.sidebar.addPanel(sTitle, sURL, "");
    } catch(e) {
      alert("加入收藏失败，请使用Ctrl+D进行添加");
    }
  }
}

/**
 * 打开前台
 *
*/
function openFrontStage() {
}

/* 判断是否包含中文
*/
function haveChinese($s) {
  return escape($s).indexOf('%u') < 0 ? false : true;
}

/* 显示日期
*/
function showDate() {
  var s = '';
  var d = new Date(); 
  s += ((document.all)?d.getYear():d.getYear()+1900)+'-'+(d.getMonth()+1)+'-'+d.getDate()+'';
  s += ' ' + d.getHours() + ':' + (d.getMinutes()*1 > 9 ? d.getMinutes() : '0'+d.getMinutes());
  s += '<span style="background-color:lightyellow;border:solid 1px #EFEFEF;padding:2px;margin-left:3px;margin-right:3px;">';
  switch(d.getDay()) {
   case 0:
    s += '  <font color="#FF0000">Sun';
    break;
   case 1:
    s += '  <font color="#555555">Mon';
    break;
   case 2:
    s += '  <font color="#555555">Tue';
    break;
   case 3:
    s += '  <font color="#555555">Wed';
    break;
   case 4:
    s += '  <font color="#555555">Thu';
    break;
   case 5:
    s += '  <font color="#555555">Fri';
    break;
   case 6:
    s += '  <font color="#FF0000">Sat';
    break;
  }
  s += '</font></span>';
  //s += ':' + d.getSeconds();
  document.write(s);
  //setTimeout('showDate()', 1000);
}

function dump(o) {
  var name = '__dump_message_container__';
  var s;
  if(typeof o == 'object') {
    s = dumpExec(o, 1);
  } else if(typeof o == 'undefined') {
    s = 'UNDEFINED';
  } else {
    s = o.toString();
  }
  if(document.getElementById(name)) {
    var obj = document.getElementById(name);
  } else {
    var obj = document.createElement('div');
    obj.id = name;
    obj.style.backgroundColor = '#FFFFFF';
    obj.style.border = 'solid 2px #F00';
    obj.style.margin = '1em';
    obj.style.padding = '.5em';
    obj.style.fontSize = '1.2em';
    obj.style.lineHeight = '160%';
    document.body.appendChild(obj);
  }
  obj.innerHTML = s;
}
function dumpExec(o, depth) {
  var s = '';
  var indent = new Array(depth).join('&nbsp;&nbsp;&nbsp;&nbsp;');
  for(a in o) {
    if(typeof o[a] == 'object') {
      s += indent + a + ': {<br />' + dumpExec(o[a], (depth+1)) + indent + '}<br />';
    } else {
      s += indent + a + ': ' + o[a].toString() + '<br />';
    }
  }
  return s;
}