function $(s){return document.getElementById(s);}
function setCopy(_sTxt){try{clipboardData.setData('Text',_sTxt)}catch(e){}}
function setHome(){try{window.external.AddFavorite(window.document.location,window.document.title)}catch(e){};}

function bbimg(o){
	var zoom=parseInt(o.style.zoom, 10)||100;zoom+=event.wheelDelta/12;if (zoom>0) o.style.zoom=zoom+'%';
	return false;
}

function FileType( photo , ext )
{
	var strResult="";
    if( photo != "" )
    {
		strResult = "<img src="+ photo +" width=\"130\" height=\"100\" border=\"1\" style=\"border-color:#999999\">" ;
    }
    else
    {
		switch ( ext )
		{
			case "bmp":
			{
				strResult = "bmp.gif" ;
			}break;
			case "gif":
			{
				strResult = "gif.gif" ;
			}break;
			case "jpg":
			{
				strResult = "jpg.gif" ;
			}break;
			case "mp3":
			{
				strResult = "mp3.gif" ;
			}break;
			case "wma":
			{
				strResult = "wma.gif" ;
			}break;
			case "rm":
			{
				strResult = "rm.gif" ;
			}break;
			case "rar":
			{
				strResult = "rar.gif" ;
			}break;
			case "swf":
			{
				strResult = "swf.gif" ;
			}break;
			case "pcx":
			{
				strResult = "pcx.gif" ;
			}break;
			case "doc":
			{
				strResult = "word.gif" ;
			}break;
			default:
			{
				strResult = "blank.gif" ;
			}break;
		}
	}
	strResult = "<img src='/images/filetype/"+ strResult +"' border='0'>";
	document.write( strResult );
}
//点击打开扩展信息
function DisplayExtInfo( id )
{
	var ExtId = document.getElementById( id );
	if( ExtId.style.display == "none" )
	{
		ExtId.style.display = "";
	}
	else
	{
		ExtId.style.display = "none";
	}
}
function CheckOthers(form)
{
	for (var i=0;i<form.elements.length;i++)
	{
		var e = form.elements[i];
//		if (e.name != 'chkall')
			if (e.checked==false)
			{
				e.checked = true;// form.chkall.checked;
			}
			else
			{
				e.checked = false;
			}
	}
}

function CheckAll(form)
{
	for (var i=0;i<form.elements.length;i++)
	{
		var e = form.elements[i];
//		if (e.name != 'chkall')
			e.checked = true// form.chkall.checked;
	}
}
function resizeImg(_oObj, _iWidth){
	var tMark = true;var iWidth = 0;var sOuterHtml;var aNode = _oObj.attributes;
	for(var i = 0; i < aNode.length; i++){if(aNode[i].specified){if(aNode[i].name == "width" || aNode[i].name == "height"){tMark = false;}}}
	if(tMark){if(_iWidth){setTimeout("resize()",3000);}}
	this.resize = function(){if(_oObj.width > _iWidth){_oObj.width = _iWidth;}}
}

function img_resize(id)
{
	_pObj = document.getElementById(id);
	var width = 180;
	var height = 120;
	if(_pObj.width < width && _pObj.height < height)return;
	if (width/_pObj.width < height/_pObj.height){
		_pObj.width     = _pObj.width * (width / _pObj.width);
	}
	else{
		_pObj.height    = _pObj.height * (height / _pObj.height);
	} 
	//alert(_pObj.width + ' ' + _pObj.height);
}


function changeMaxLen(obj, len) {
	var num = 0;
	var strlen = 0;
	var obj_value_arr = obj.value.split("");
	for(var i = 0; i < obj_value_arr.length; i ++) {
		if(i < len && num + byteLength(obj_value_arr[i]) <= len) {
			num += byteLength(obj_value_arr[i]);
			strlen = i + 1;
		}
	}
	if(obj.value.length > strlen) {
		obj.value = obj.value.substr(0, strlen);
	}
}

function $(Obj) {
	return document.getElementById(Obj);
}
 
function setSelect(_sName, _sVal){
	var oObj = document.getElementsByName(_sName);
	for (var i = 0; i < oObj.length; i++){
		if (oObj[i].type == "select-one"){
			for (var j = 0; j < oObj[i].options.length; j++){
				if (_sVal == oObj[i].options[j].value){
					oObj[i].options[j].selected = true;
				}
			}
		}
		if ((oObj[i].type == "checkbox" || oObj[i].type == "radio") && _sVal == oObj[i].value){
			oObj[i].checked = true;
		}
	}
}
function del_Space(s)
{
	for(i=0;i<s.length;++i)
	{
	 if(s.charAt(i)!=" ")
		break;
	}

	for(j=s.length-1;j>=0;--j)
	{
	 if(s.charAt(j)!=" ")
		break;
	}

	return s.substring(i,++j);
}
function setDisable( _sName , _sVal )
{
	var oObj = document.getElementById(_sName);
	
        if ( _sVal == true )
	{
		oObj.disabled = true;
	}
	else
	{
		oObj.disabled = false;
	}
}
function setDisplay( _sName , _sVal )
{
	var oObj = document.getElementById(_sName);
	
        if ( _sVal == true )
	{
		oObj.style.display = "";
	}
	else
	{
		oObj.style.display = "none";
	}
}
function setValue(_sName , _sVal)
{
	var oObj = document.getElementById(_sName);
	if( oObj.type== "text" || oObj.type == "textarea" || oObj.type == "hidden")
        	oObj.value = _sVal ;
}
function setCheck(_sName , _sVal)
{
	var oObj = document.getElementById(_sName);
	if( oObj.type == "checkbox")
	{
		if ( _sVal == 1 )
		{
        		oObj.checked = true ;
		}
		else
		{
			oObj.checked = false ;
		}
	}
}
//拷贝到剪贴板
function copyToClipBoard(){

    var clipBoardContent=document.location; 

    clipBoardContent+='\r\n';

    window.clipboardData.setData("Text",clipBoardContent);

    alert("耶！复制成功喽！你可以粘贴在QQ/msn消息里送给你的好朋友！");
}