function forsearch()
{
  var searchtxt=document.formxx.index.value;
  if(searchtxt=="")
  { alert("请输入关键字"); return false;}
  document.formxx.index.focus();
  formxx.submit();
}


function wopen(url){
window.open(url,"","height=510,Width=520,scrollbars=yes,menubar=no,depended=yes,toolbar=no");
}


//点击显示DIV 再点关闭
function showmore()
{
	if(document.all.show.checked== true)
	{
		document.all.dd.style.display = '';
	}
	else if(document.all.show.checked == false)
	{
		document.all.dd.style.display = 'none';
	}
}

//点击显示DIV 再点关闭2
function onclickshowone(Objectone,Objecttwo,Objectthree)
{

		document.getElementById(Objectone).style.display='';
		document.getElementById(Objecttwo).style.display = 'none';
		document.getElementById(Objectthree).style.display = 'none';
 
}
//改变IFRAME的SRC

function changeifmsrc(selectname,Objectname,div,ad)
{
	var classurl=document.getElementById(selectname).value;
	var gotourl='addguanggao.php?class='+classurl+'&ad='+ad;
	if(classurl !='')
	{
			document.getElementById(Objectname).src =gotourl;
		  document.getElementById(div).style.display ='';
  }
  else
  {
  	  document.getElementById(div).style.display ='none';
  }
}
//改变IFRAME的SRC

function changeifmsrc_class(Objectname,div)
{
	var classurl=document.all.mune.value;
	var gotourl='addclass.php?channelid='+classurl;
	if(classurl !='')
	{
			document.getElementById(Objectname).src =gotourl;
		  document.getElementById(div).style.display ='';
  }
  else
  {
  	  document.getElementById(div).style.display ='none';
  }
}

//上传图片展示
function layerWrite()
{
	var showimg = new Image();
	showimg.src = document.group.uploadsmallimg.value;
	setTimeout('showimg()',500);
}
function showimg()
{
	var showimg = new Image();
	showimg.src = document.group.uploadsmallimg.value;
	if(showimg.width > 600)
	{
		var ori_w= showimg.width;
		var ori_h = showimg.height;
		showimg.width = 300;
		showimg.height = ori_h * showimg.width / ori_w;
	}
	if(showimg.width < 5 || showimg.height <5)
	{
		showimg.width = showimg.height = 100;
	}
	document.all.imgview.innerHTML = "<table><tr align=center><td colspan=2 align=center><img src=" + showimg.src + " width="+showimg.width+" height="+showimg.height+"></td></tr></table>" ;
	document.all.imgview.style.display = "";
}

//复选框  全选
function checkall(form) {
	for(var i = 0;i < form.elements.length; i++) {
		var e = form.elements[i];
		if (e.name != 'chkall' && e.disabled != true) {
			e.checked = form.chkall.checked;
		}
	}
}
//验证密码
function isPasswd(Objectname)
{
var s=document.getElementById(Objectname).value;
var patrn=/^[a-zA-Z0-9]{6,15}$/;
if (!patrn.exec(s))
{
	alert("密码应由6-15位的数字和字母组成");
	return false
} 
return true
}

//点击显示DIV 再点关闭2
function onclickshowmore_my(Objectname,imgdir,imgdir2)
{
	var imgname=Objectname+'img';

	if(document.getElementById(Objectname).style.display=='')
	{
		document.getElementById(Objectname).style.display = 'none';
		
		document.getElementById(imgname).src = imgdir;
	}
	else if(document.getElementById(Objectname).style.display == 'none')
	{
		document.getElementById(Objectname).style.display = '';		
		document.getElementById(imgname).src = imgdir2;

	}
}

//点击显示DIV 班级
function onclickshowclass(divname,divnum,num)
{
	var Objectname=document.getElementById(divname+divnum);

	 if(Objectname.style.display == 'none')
	{
		Objectname.style.display = '';
			for(i=1;i <= num;i++)
			{
				if(divnum!=i)
				{
				  document.getElementById(divname+i).style.display = 'none';
 				//	document.getElementById('img'+i).src = 'images/+.gif';				 
			  }

			}
	}
}
//点击显示DIV 再点关闭2

function changefontsize(divname,stepnum)
{
	 
    var oldsize=document.getElementById(divname).style.fontSize;	 
    sizenum=Number(oldsize.replace(/[^0-9]/ig,""));
   // alert(sizenum);
    document.getElementById(divname).style.fontSize=sizenum+stepnum+'px';
    
}

function wopen(urln,widthn,heightn){
window.open(urln,"","height="+heightn+",Width="+widthn+",scrollbars=yes,menubar=no,depended=yes,toolbar=no");
}

function jsop(radionvalue) {
document.getElementById('divcheck').style.display = "none";
document.getElementById('divmovecat').style.display = "none";
if(radionvalue == 'check' || radionvalue == 'movecat') {
document.getElementById('div'+radionvalue).style.display = "";
}}


//显示DIV 3
function showdiv(showname,divnum,nums)
{
	document.getElementById(showname+divnum).style.display = '';	
	//document.getElementById(showname+'img'+divnum).src = '../images/default/'+showname+'_t_'+divnum+'.jpg';
	for(i=1;i <= nums;i++)
	{
		if(i != divnum)
		{
			if(document.getElementById(showname+i)) 
			{
	     	document.getElementById(showname+i).style.display = 'none';
	     // document.getElementById(showname+'img'+i).src = '../images/default/'+showname+'_'+i+'.jpg';	     	
	    }
	  }
	}	
}

//DONOT DO THIS
function candothis(thecontorl,gotoURL)
{
			if( thecontorl!= true ) 
			{
				 alert("对不起，您还没有该操作权限");
	  	   return false;
	    }
      else
      {
      	if(gotoURL != '')
      	{
		      self.location=gotoURL;
		      return true;
	      }
      }
}