function shover(b,a){
    if(!b){
        return
    }
    b.className=a
}
var isIE = (document.all) ? true : false;
var isIE6 = isIE && ([/MSIE (\d)\.0/i.exec(navigator.userAgent)][0][1] == 6);


function Each(list, fun){
for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
};

var $ = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
}
}

Object.extend = function(destination, source) {
for (var property in source) {
    destination[property] = source[property];
}
return destination;
}

Function.prototype.bind = function(object) {
var __method = this, args = Array.apply(null, arguments); args.shift();
return function() {
    return __method.apply(object, args);
}
}

var OverLay = Class.create();
OverLay.prototype = {
initialize: function(overlay, options) {
this.Lay = $(overlay);


this._size = function(){};

this.SetOptions(options);

this.Color = this.options.Color;
this.Opacity = parseInt(this.options.Opacity);
this.zIndex = parseInt(this.options.zIndex);

this.Set();
},

SetOptions: function(options) {
    this.options = {
Color:"#000000",
Opacity:60,
zIndex:1000
    };
    Object.extend(this.options, options || {});
},

Set: function() {
this.Lay.style.display = "none";
this.Lay.style.zIndex = this.zIndex;
this.Lay.style.left = this.Lay.style.top = 0;

if(isIE6){
this.Lay.style.position = "absolute";
this._size = function(){
this.Lay.style.width = Math.max(document.documentElement.scrollWidth, document.documentElement.clientWidth) + "px";
this.Lay.style.height = Math.max(document.documentElement.scrollHeight, document.documentElement.clientHeight) + "px";
}.bind(this);

this.Lay.innerHTML = '<iframe style="position:absolute;top:0;left:0;width:100%;height:100%;filter:alpha(opacity=0);"></iframe>'
} else {
this.Lay.style.position = "fixed";
this.Lay.style.width = this.Lay.style.height = "100%";
}
},

Show: function() {

this.Lay.style.backgroundColor = this.Color;

if(isIE){
this.Lay.style.filter = "alpha(opacity:" + this.Opacity + ")";
} else {
this.Lay.style.opacity = this.Opacity / 100;
}

if(isIE6){ this._size(); window.attachEvent("onresize", this._size); }

this.Lay.style.display = "block";
},

Close: function() {
this.Lay.style.display = "none";
if(isIE6){ window.detachEvent("onresize", this._size); }
}
};



var LightBox = Class.create();
LightBox.prototype = {
initialize: function(box, overlay, options) {

this.Box = $(box);

this.OverLay = new OverLay(overlay, options);

this.SetOptions(options);

this.Fixed = !!this.options.Fixed;
this.Over = !!this.options.Over;
this.Center = !!this.options.Center;
this.onShow = this.options.onShow;

this.Box.style.zIndex = this.OverLay.zIndex + 1;
this.Box.style.display = "none";


if(isIE6){ this._top = this._left = 0; this._select = []; }
},

SetOptions: function(options) {
    this.options = {
Fixed:false,
Over:true,
Center:false,
onShow:function(){}
};
    Object.extend(this.options, options || {});
},

_fixed: function(){
var iTop = this.Box.offsetTop + document.documentElement.scrollTop - this._top, iLeft = this.Box.offsetLeft + document.documentElement.scrollLeft - this._left;

if(this.Center){ iTop += this.Box.offsetHeight / 2; iLeft += this.Box.offsetWidth / 2; }

this.Box.style.top = iTop + "px"; this.Box.style.left = iLeft + "px";

this._top = document.documentElement.scrollTop; this._left = document.documentElement.scrollLeft;
},

Show: function(options) {

if(this.Fixed){
if(isIE6){

this.Box.style.position = "absolute";
this._top = document.documentElement.scrollTop; this._left = document.documentElement.scrollLeft;
window.attachEvent("onscroll", this._fixed.bind(this));
} else {
this.Box.style.position = "fixed";
}
} else {
this.Box.style.position = "absolute";
}

if(this.Over){

this.OverLay.Show();
} else {

if(isIE6){
this._select = [];
var oThis = this;
Each(document.getElementsByTagName("select"), function(o){
if(oThis.Box.contains ? !oThis.Box.contains(o) : !(oThis.Box.compareDocumentPosition(o) & 16)){
o.style.visibility = "hidden"; oThis._select.push(o);
}
})
}
}

this.Box.style.display = "block";


if(this.Center){
this.Box.style.top = this.Box.style.left = "50%";

var iTop = - this.Box.offsetHeight / 2, iLeft = - this.Box.offsetWidth / 2;

if(!this.Fixed || isIE6){ iTop += document.documentElement.scrollTop; iLeft += document.documentElement.scrollLeft; }
this.Box.style.marginTop = iTop + "px"; this.Box.style.marginLeft = iLeft + "px";
}

this.onShow();
},

Close: function() {
this.Box.style.display = "none";
this.OverLay.Close();
if(isIE6){ window.detachEvent("onscroll", this._fixed); Each(this._select, function(o){ o.style.visibility = "visible"; }); }
}
};


function addEventHandler(oTarget, sEventType, fnHandler) {
if (oTarget.addEventListener) {
oTarget.addEventListener(sEventType, fnHandler, false);
} else if (oTarget.attachEvent) {
oTarget.attachEvent("on" + sEventType, fnHandler);
} else {
oTarget["on" + sEventType] = fnHandler;
}
};

function removeEventHandler(oTarget, sEventType, fnHandler) {
    if (oTarget.removeEventListener) {
        oTarget.removeEventListener(sEventType, fnHandler, false);
    } else if (oTarget.detachEvent) {
        oTarget.detachEvent("on" + sEventType, fnHandler);
    } else { 
        oTarget["on" + sEventType] = null;
    }
};

if(!isIE){
HTMLElement.prototype.__defineGetter__("currentStyle", function () {
return this.ownerDocument.defaultView.getComputedStyle(this, null);
});
}


var Drag = Class.create();
Drag.prototype = {

initialize: function(obj, drag, options) {
    var oThis = this;

this._obj = $(obj);
this.Drag = $(drag);
this._x = this._y = 0;

this._fM = function(e){ oThis.Move(window.event || e); }
this._fS = function(){ oThis.Stop(); }

this.SetOptions(options);

this.Limit = !!this.options.Limit;
this.mxLeft = parseInt(this.options.mxLeft);
this.mxRight = parseInt(this.options.mxRight);
this.mxTop = parseInt(this.options.mxTop);
this.mxBottom = parseInt(this.options.mxBottom);
this.mxContainer = this.options.mxContainer;

this.onMove = this.options.onMove;
this.Lock = !!this.options.Lock;

this._obj.style.position = "absolute";
addEventHandler(this.Drag, "mousedown", function(e){ oThis.Start(window.event || e); });
},

SetOptions: function(options) {
    this.options = {
Limit:false,
mxLeft:0,
mxRight:0,
mxTop:0,
mxBottom:0,
mxContainer:null,
onMove:function(){},
Lock:false
    };
    Object.extend(this.options, options || {});
},

Start: function(oEvent) {
if(this.Lock){ return; }

this._x = oEvent.clientX - this._obj.offsetLeft;
this._y = oEvent.clientY - this._obj.offsetTop;

addEventHandler(document, "mousemove", this._fM);
addEventHandler(document, "mouseup", this._fS);

if(isIE){
addEventHandler(this.Drag, "losecapture", this._fS);
this.Drag.setCapture();
}else{
addEventHandler(window, "blur", this._fS);
}
},

Move: function(oEvent) {

if(this.Lock){ this.Stop(); return; }

window.getSelection && window.getSelection().removeAllRanges();

var iLeft = oEvent.clientX - this._x, iTop = oEvent.clientY - this._y;

if(this.Limit){

if(!!this.mxContainer){
this.mxLeft = this.mxTop = 0;
this.mxRight = this.mxContainer.clientWidth;
this.mxBottom = this.mxContainer.clientHeight;
}

var iRight = iLeft + this._obj.offsetWidth - this.mxRight, iBottom = iTop + this._obj.offsetHeight - this.mxBottom;

if(iRight > 0) iLeft -= iRight;
if(iBottom > 0) iTop -= iBottom;
if(this.mxLeft > iLeft) iLeft = this.mxLeft;
if(this.mxTop > iTop) iTop = this.mxTop;
}


this._obj.style.left = iLeft - (parseInt(this._obj.currentStyle.marginLeft) || 0) + "px";
this._obj.style.top = iTop - (parseInt(this._obj.currentStyle.marginTop) || 0) + "px";

this.onMove();
},

Stop: function() {

removeEventHandler(document, "mousemove", this._fM);
removeEventHandler(document, "mouseup", this._fS);
if(isIE){
removeEventHandler(this.Drag, "losecapture", this._fS);
this.Drag.releaseCapture();
}else{
removeEventHandler(window, "blur", this._fS);
}
}
}
function chgsize(fname,fwidth,fheight) {
    var width1=fname.width;            
    var height1=fname.height; 
	if (height1>fheight) {
          if (width1*fheight/height1>fwidth){fname.width=fwidth;
             fname.height=height1*fwidth/width1;}
          else{
          fname.height=fheight;
        fname.width=width1*fheight/height1;}
      }
	if (width1>fwidth) {
          if (height1*fwidth/width1>fheight){fname.height=fheight;
             fname.width=width1*fheight/height1;}
          else{
        fname.width=fwidth;
        fname.height=height1*fwidth/width1;}
       }
}

function smallit(){            
	var height1=controlimg.height;            
	var width1=controlimg.width;            
	controlimg.height=height1/1.2;            
	controlimg.width=width1/1.2;           
}             
          
function bigit(){            
	var height1=controlimg.height;            
	var width1=controlimg.width;            
	controlimg.height=height1*1.2;          
	controlimg.width=width1*1.2;           
}             
function fullit(url)
{
	var width_s=screen.width-10;
	var height_s=screen.height-10;
	window.open(url,"viewimage", "width="+width_s+",height="+height_s+",left=0,top=0,location=no,toolbar=no,status=no,resizable=no,scrollbars=yes,menubar=no,directories=no");
}
function featsize()
{
	var width1=controlimg.width;            
	var height1=controlimg.height;            
	var width2=700;            
	var height2=530;            
	var h=height1/height2;
	var w=width1/width2;
	if(height1<height2&&width1<width2)
	{
		controlimg.height=height1;            
		controlimg.width=width1;           
	}
	else
	{
		if(h>w)
		{
			controlimg.height=height2;          
			controlimg.width=width1*height2/height1;           
		}
		else
		{
			controlimg.width=width2;           
			controlimg.height=height1*width2/width1;          
		}
	}
	
}

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