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 openpmwin(theURL) { //v2.0
  window.open(theURL,"pm","status=no,scrollbars=yes,width=600,height=400");
}

function openalbumwin(theURL) { //v2.0
  window.open(theURL,"album","status=no,scrollbars=yes,width=600,height=400");
}

function opennewswin(theURL) { //v2.0
  window.open(theURL,"news","status=no,scrollbars=yes,width=600,height=500");
}

function openchatroom(theURL) { //v2.0
  window.open(theURL,"chatroom","width=750,height=550,status=yes,scrollbars=yes,menubar=no,toolbar=no,titlebar=no,resizable=yes");
}

function validatechangeform(theform,oldforumid) {
	if (theform.forumid.value=="" || theform.forumid.value==0) {
		alert("请选择有效的论坛.");
		theform.forumid.focus();
		return false;
	}else if (theform.forumid.value==oldforumid) {
		alert("不能选择与当前论坛相同的论坛.");
		theform.forumid.focus();
		return false;
	}else{
		theform.action="./list_thread.php?forumid="+theform.forumid.value;
		return true;
	}
}

function openpollwin(theURL) { //v2.0
  window.open(theURL,"poll","status=no,scrollbars=yes,width=400,height=300");
}

function opentravelwin(theURL) { //v2.0
  window.open(theURL,"travel","status=no,scrollbars=yes,width=600,height=500");
}

showuser=0;
function displayonline(){
	if (showuser==0)
	{
		showuser=1;
	}else if(showuser==1){
		showuser=0;
	}
	if (showuser==0)
	{
		document.all.hiddenframe.style.display='none';
		document.all.showtxt.innerText="显示详细列表";
	}else{
		document.all.hiddenframe.style.display='';
		document.all.showtxt.innerText="隐藏详细列表";
	}
}