var dataNum = 0;
var setRepeat;
var jsonData = new Array();
var request = null;
	try {
	  request = new XMLHttpRequest();
	} catch (trymicrosoft) {
	  try {
		request = new ActiveXObject("Msxml2.XMLHTTP");
	  } catch (othermicrosoft) {
		try {
		  request = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (failed) {
		  request = null;
		}
	  }
	}


var url = "/babypeer/PUBLIC_MODULE/GET_HOME_NEWS.php";
request.open("GET", url, true);
request.onreadystatechange = updatePage;
request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
request.send(null);


function updatePage(){
  if (request.readyState == 4) {
    if (request.status == 200) {
      jsonData = eval('(' + request.responseText + ')');
	  if(jsonData.length > 0){
		  //load資料,最多只load五筆
		  if(jsonData.length > 2){
			  for(i=0;i<2;i++){
				var j = i+1;
				document.getElementById('NEWS_CON'+j).innerHTML = jsonData[i];
				dataNum++;
			  }
			  window.onload = function(){setRepeat = window.setInterval(chgNews,20000);}
	  	  }else{
			 if(jsonData.length == 1){
				 document.getElementById('NEWS_CON1').onmouseover = undefined;
				 document.getElementById('NEWS_CON1').onmouseout = undefined;
				 document.getElementById('NEWS_CON2').onmouseover = undefined;
				 document.getElementById('NEWS_CON2').onmouseout = undefined;
				 document.getElementById('NEWS_CON1').innerHTML = jsonData[dataNum];
				 dataNum++;
			 }else{
				 document.getElementById('NEWS_CON1').onmouseover = undefined;
				 document.getElementById('NEWS_CON1').onmouseout = undefined;
				 document.getElementById('NEWS_CON2').onmouseover = undefined;
				 document.getElementById('NEWS_CON2').onmouseout = undefined;
				 document.getElementById('NEWS_CON1').innerHTML = jsonData[dataNum];
				 dataNum++;
				 document.getElementById('NEWS_CON2').innerHTML = jsonData[dataNum];
				 dataNum++;
			 }
		  }
	  }else{
		  document.getElementById('NEWS_CON1').onmouseover = undefined;
		  document.getElementById('NEWS_CON1').onmouseout = undefined;
		  document.getElementById('NEWS_CON2').onmouseover = undefined;
		  document.getElementById('NEWS_CON2').onmouseout = undefined;
		  document.getElementById('NEWS_CON1').innerHTML = '<div class="content_gray" align="center" style="width:100%;">目前尚無任何新鮮事!!</span>';
	  }
    }else{
      var message = request.getResponseHeader("Status");
      if ((message == null) )
        alert("Error! Request status is " + request.status);
      else
        alert(message);
    }
  }
}

function chgNews(){
  if(dataNum < jsonData.length){
    if((jsonData.length-dataNum) >= 2){
		document.getElementById('NEWS_CON1').innerHTML = jsonData[dataNum];
		dataNum++;
		document.getElementById('NEWS_CON2').innerHTML = jsonData[dataNum];
		dataNum++;
	}else{
		document.getElementById('NEWS_CON1').innerHTML = jsonData[dataNum];
		dataNum++;
	}
  }else{
	 dataNum = 0 ; 
     for(i=0;i<2;i++){
	   var j = i+1;
	   document.getElementById('NEWS_CON'+j).innerHTML = jsonData[i];
	   dataNum++;
	 }
  }
}