function $(element) {
  return document.getElementById(element);
}
//切屏--是按钮，_v是内容平台，_h是内容库
function reg(str){
  var bt=$(str+"_b").getElementsByTagName("h2");
  for(var i=0;i<bt.length;i++){
    bt[i].subj=str;
    bt[i].pai=i;
    bt[i].style.cursor="pointer";
    bt[i].onclick=function(){
      $(this.subj+"_v").innerHTML=$(this.subj+"_h").getElementsByTagName("blockquote")[this.pai].innerHTML;
      for(var j=0;j<$(this.subj+"_b").getElementsByTagName("h2").length;j++){
        var _bt=$(this.subj+"_b").getElementsByTagName("h2")[j];
        var ison=j==this.pai;
        _bt.className=(ison?"":"h2bg");
      }
    }
  }
  $(str+"_h").className="none";
  $(str+"_v").innerHTML=$(str+"_h").getElementsByTagName("blockquote")[0].innerHTML;
}
function changehuobi(form){
	var now = new Date(); 
    var ss = now.getTime() % 60000;
	//alert(form.currency.value);
	var url="includes/writehbsess.php?currency="+ form.currency.value +"&dates="+ss;
    //alert(url);
	if (window.XMLHttpRequest) {
	   reqs = new XMLHttpRequest();
	   reqs.open("GET", url, true);
	   reqs.onreadystatechange = callback;
	   reqs.send(null);
	} else if (window.ActiveXObject) {
	   reqs = new ActiveXObject("Microsoft.XMLHTTP");
	   reqs.open("GET", url, true);
	   reqs.onreadystatechange = callback;
	   reqs.send(); 
	}
	//alert(window.location.href);
	//form.submit();
	setTimeout("window.location.reload();",500) 
	
}

function callback(){
if (reqs.readyState == 4){
var msg=reqs.responseBody;
    //msg=bytes2BSTR(msg);
	//alert('f');
}
}