//by Textcube
function createHttp() {
	try {
		return new XMLHttpRequest();
	}
	catch (e) {
		var objectNames = ["MSXML2.XMLHTTP.5.0", "MSXML2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"];
		for (var i = 0; i < objectNames.length; i ++) {
			try {
				return new ActiveXObject(objectNames[i]);
				break;
			}
			catch (e) {
			}
		}
		return null;
	}
}

function requestHttp(action, content, callback) {
	var http = createHttp();
	http.onreadystatechange = function () {
		if(http.readyState == 4){
			if(http.status == 200) {
				var ret = http.responseText;
				var returnCallback = callback + "(ret)";
				eval(returnCallback);
			}
		}
	}
	http.open("POST", action, true);
	http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	http.send(content);
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function vemail(str) {
	var pt = /^[_a-zA-Z0-9-\.]+@[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/;
	return (pt.test(str)) ? true : false;
}

function vempty(str) {
	str = str.replace(/\s+/g,'');
	if(!str||str == ""||str == " ") return true;
	else return false;
}

function divFlip(div) {
	var d = document.getElementById(div);
	if(d.style.display == "none") d.style.display = "inline";
	else d.style.display = "none";
}


var interval = "";
var interval_flag = false;
var interval_time = 60000;

function getTwitList() {
	var a = document.getElementById("tupdate");
	if(a.checked == true) {
		if(interval_flag == false) {
			interval = setInterval("getTwitList()", interval_time);
			interval_flag = true;
		}
		var action = "rss_twitter.php";
		var content = "";
		requestHttp(action, content, "getTwitListResult");
	} else {
		interval_flag = false;
		clearInterval(interval);
	}
}

function getTwitListResult(ret) {
	if(ret) {
		var d = document.getElementById("twit");
		d.innerHTML = ret;
	}
}