//<![CDATA[
function validstr(str) // 验证用户名
{ var s,i,j; s=" +=|'#&<>%*`^/\\\";,."; str1=str.value.toString();
  if (str.value.length <1){alert("昵称不能为空！");str.focus(); return false;}
  for (i=0; i<str1.length; i++)
  {	for(j=0;j<s.length;j++)
	{if (str1.charAt(i) == s.charAt(j))
     {	alert("名字中不能包含特殊字符: +=|'#&<>%*`^/\\\";,.空格.");
 		str.focus(); return false;
  }}}return true;
}
function OnLogin(n) // 登录聊天室
{	
	if(!validstr(login.user))return ;
	login.submit() ;
}

//右侧内容切换
function show_it(n){
	var n;
	if(n == 0){
	//alert(n);
	document.getElementById("right_1").style.display = "";
	document.getElementById("right_2").style.display = "";
	document.getElementById("right_3").style.display = "";
	document.getElementById("right_4").style.display = "";
	document.getElementById("right_1b").style.display = "none";
	document.getElementById("right_2b").style.display = "none";
	document.getElementById("right_3b").style.display = "none";
}else{
	//alert(n);
	document.getElementById("right_1").style.display = "none";
	document.getElementById("right_2").style.display = "none";
	document.getElementById("right_3").style.display = "none";
	document.getElementById("right_4").style.display = "none";
	document.getElementById("right_1b").style.display = "";
	document.getElementById("right_2b").style.display = "";
	document.getElementById("right_3b").style.display = "";

	}
	}


function olImg() { //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=olImg.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 show_div(div_id,obj){
	var  t_id = document.getElementById(div_id);
	var  t_num = document.getElementById(obj);
		if (t_id.style.display == ""){
	     t_id.style.display = "none";
	     t_num.style.background = "url('http://www.56jq.com/images/left_menu_title_down.gif') no-repeat";
      }else{
      	t_id.style.display = "";
      	t_num.style.background = "url('http://www.56jq.com/jq/images/left_menu_title_up.gif') no-repeat";
      	}
}

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];}
}

//]]>