var aLinks = new Array();
var aImages = new Array();
var aTexts = new Array();
var aContent = new Array();

aLinks[0] = '#';
aImages[0] = '../images/db/p1.gif';

aLinks[1] = '#';
aImages[1] = '../images/db/p1.gif';

aLinks[2] = '#';
aImages[2] = '../images/db/p1.gif';

aLinks[3] = '#';
aImages[3] = '../images/db/p1.gif';

var iSize = 3; //滚动图片个数 最多为8个 变动需要调整css设置
var cNum = 3; //
var interval = 5000;
var setTime = null;

function picSwcInit(){

  var picHtml = '';
  var navHtml = '';
  var conHtml = '';

//初始化HTML代码
  navHtml += '<ul>';

  for(var i=0;i<=iSize;i++){
    picHtml += '<div style="display: none;" id="focusPic'+i+'"><a href="'+aLinks[i]+'"><img class="left" alt="'+aTexts[i]+'" src="'+aImages[i]+'"/></a></div>'; 
    navHtml += '<li id="focusNav'+i+'"><a href="javascript:ps_showFocus('+i+');"><img width="23" height="13" border="0" src="../images/btn/btn_news_'+(i+1)+'.gif"/></a></li>';
  }
  navHtml += '</ul>';

  jQuery('#picSwitch').append('<div class="pic"></div>');
  jQuery('#picSwitch').html(picHtml);
  jQuery('#picSwitch').append(navHtml);

//自动执行切换
  ps_rotate();
}

function ps_showFocus(num){
  cNum = num; //设置当前序号为流水序号
  for(var i = 0;i<=iSize;i++){
    var fpid = 'focusPic'+i;
    var fcid = 'focusContent'+i;
    var fnid = 'focusNav'+i;
    if(i==num){
      jQuery('#'+fpid).css('display','block');
      jQuery('#'+fcid).css('display','block');
      jQuery('#'+fnid+' img').attr('src','../images/btn/btn_news_'+(i+1)+'_on.gif');
    }else{
      jQuery('#'+fpid).css('display','none');
      jQuery('#'+fcid).css('display','none');
      jQuery('#'+fnid+' img').attr('src','../images/btn/btn_news_'+(i+1)+'.gif');
    }
  }

  clearTimeout(setTime);
  setTime = setTimeout("ps_rotate()",interval);
}

function ps_rotate(){
    cNum = (cNum>=iSize)?0:cNum+1; 
    ps_showFocus(cNum);
}

jQuery(function(){
  picSwcInit();
});