//两个按钮的切换
function Tab(a,b,c,d)
{
    var div1 = document.getElementById(a);
	var div2 = document.getElementById(b);
	var div1_c = document.getElementById(a+'_c');
	var div2_c = document.getElementById(b+'_c');
	if (div1&&div2)
	{
	    div1_c.className = c;
		div1.style.display = '';

		div2_c.className = d;
		div2.style.display = 'none';
	}
}

//多按钮切换
function Show(di,num,divn,activecss,unactivecss)
		{
		   var obj = document.getElementById(divn+di);
		   obj.className = activecss;
		   var divobj = document.getElementById(divn+di+'_nr');
		   divobj.style.display = 'block';
		   
			   for(i=0;i<num;i++)
			   {
			     if(di!=i)
				   {
				     temobj = document.getElementById(divn+i);
					 temobj.className = unactivecss;
					 divobj = document.getElementById(divn+i+'_nr');
					 divobj.style.display = 'none';
				    }
				}
		}

//表单判断
function checktype2() {
  	var x=document.forms["form2"].sel[0].checked;
	if(x){
	document.forms["form2"].t1.disabled=true;document.forms["form2"].t2.disabled=false;
	}
	else
	{
	document.forms["form2"].t2.disabled=true;document.forms["form2"].t1.disabled=false;
	}
  }

//进入贴吧
function check(){
	  var barname = document.getElementById('barname').value;
	  var pattern = /^[0-9]+$/;
	  if(pattern.test(barname))
	{
		  return true;
	}
	else
	{
		window.open("http://post.cnfol.com");
		return false;
	}
}

//定义ID函数
function $k(s)
{
  return document.getElementById(s);
}

//图片切换
function AutoPicPages() {
    try {var np = $k('pagenav_next') ? $k('pagenav_next').href : $k('pagenav_first').href} catch (e) { return false; };
    var is = $k('__content').getElementsByTagName('img');
    for (var i=0; i<is.length; i++) {
            window.location = np;
			is[i].parentNode.title = '点击图片进入下一页';
            is[i].parentNode.target = '_top';
    }
}