function showLScript( fname, ScriptAvail ){
    var temp;
	temp = fname.split("/")
	if( ScriptAvail != 1 ){
		alert("You won't have access to the script until you have scored over 60 points.");
	}else{
		document.all.LsnScripLayer.style.visibility = "visible";
		document.all.listenscript.src = "../listening/scripts/" + temp[temp.length - 1].replace(".","_") + ".html";
	}
}
	
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
	if (init == true) with (navigator) {
  		if ((appName == "Netscape") && (parseInt(appVersion) == 4)) {
    		document.MM_pgW = innerWidth;
    		document.MM_pgH = innerHeight;
    		onresize = MM_reloadPage; 
    	}
    }
  	else if (innerWidth != document.MM_pgW || innerHeight != document.MM_pgH){
  		location.reload();
  	}
}

MM_reloadPage(true);

/* 拖动层 */
function MM_dragLayer(objName,x,hL,hT,hW,hH,toFront,dropBack,cU,cD,cL,cR,targL,targT,tol,dropJS,et,dragJS) { //v3.0
  //Copyright 1998 Macromedia, Inc. All rights reserved.
	var i, j, aLayer, retVal, curDrag = null, NS = (navigator.appName == 'Netscape'), curLeft, curTop;
	if (!document.all && !document.layers){
		return false;
	}
	retVal = true;
	if(!NS && event) {
		event.returnValue = true;
	}
	if (MM_dragLayer.arguments.length > 1) {
		curDrag = MM_findObj(objName);
		if (!curDrag) {
			return false;
		}
		if (!document.allLayers) { 
			document.allLayers = new Array();
			with (document) if (NS) { 
				for (i = 0; i < layers.length; i++) {
					allLayers[i] = layers[i];
				}
				for (i = 0; i < allLayers.length; i++) {
					if (allLayers[i].document && allLayers[i].document.layers) with (allLayers[i].document) {
						for (j = 0; j < layers.length; j++) {
							allLayers[allLayers.length] = layers[j];
						}
					}
				}
			} else {
				for (i = 0; i < all.length; i++){
					if (all[i].style && all[i].style.position) {
						allLayers[allLayers.length] = all[i];
					}
				}
			}
		}
	    curDrag.MM_dragOk = true;
	    curDrag.MM_targL = targL;
	    curDrag.MM_targT = targT;
	    curDrag.MM_tol = Math.pow(tol,2);
	    curDrag.MM_hLeft = hL;
	    curDrag.MM_hTop = hT;
	    curDrag.MM_hWidth = hW;
	    curDrag.MM_hHeight = hH;
	    curDrag.MM_toFront = toFront;
	    curDrag.MM_dropBack = dropBack;
	    curDrag.MM_dropJS = dropJS;
	    curDrag.MM_everyTime = et;
	    curDrag.MM_dragJS = dragJS;
	    curDrag.MM_oldZ = (NS)?curDrag.zIndex:curDrag.style.zIndex;
	    curLeft = (NS)?curDrag.left:curDrag.style.pixelLeft;
		curDrag.MM_startL = curLeft;
	    curTop = (NS)?curDrag.top:curDrag.style.pixelTop;
	    curDrag.MM_startT = curTop;
	    curDrag.MM_bL = (cL<0)?null:curLeft - cL; 
	    curDrag.MM_bT = (cU<0)?null:curTop - cU;
	    curDrag.MM_bR = (cR<0)?null:curLeft + cR;
	    curDrag.MM_bB = (cD<0)?null:curTop + cD;
	    curDrag.MM_LEFTRIGHT = 0; 
	    curDrag.MM_UPDOWN = 0;
	    curDrag.MM_SNAPPED = false; //use in your JS!
	    document.onmousedown = MM_dragLayer;
	    document.onmouseup = MM_dragLayer;
	    if (NS){ 
	    	document.captureEvents(Event.MOUSEDOWN | Event.MOUSEUP);
	    }
	} else {		
    	var theEvent = ((NS)?objName.type:event.type);
   		if (theEvent == 'mousedown') {
    		var mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
      		var mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
      		var maxDragZ = null;
      		document.MM_maxZ = 0;
      		for (i = 0; i < document.allLayers.length; i++) { 
      			aLayer = document.allLayers[i];
        		var aLayerZ = (NS)?aLayer.zIndex:aLayer.style.zIndex;
        			if (aLayerZ > document.MM_maxZ) {
        				document.MM_maxZ = aLayerZ;
        			}
       			var isVisible = (((NS)?aLayer.visibility:aLayer.style.visibility).indexOf('hid') == -1);
        		if (aLayer.MM_dragOk != null && isVisible) with (aLayer) {
          			var parentL = 0; 
          			var parentT = 0;
          			if (!NS) { 
          				parentLayer = aLayer.parentElement;
            			while (parentLayer != null && parentLayer.style.position) {
              				parentL += parentLayer.offsetLeft; 
              				parentT += parentLayer.offsetTop;
              				parentLayer = parentLayer.parentElement; 
              			} 
              		}
          			var tmpX = mouseX - (((NS)?pageX:style.pixelLeft + parentL) + MM_hLeft);
         			var tmpY = mouseY - (((NS)?pageY:style.pixelTop + parentT) + MM_hTop);
          			var tmpW = MM_hWidth;  
          			if (tmpW <= 0){
          				tmpW += ((NS)?clip.width :offsetWidth);
          			}
          			var tmpH = MM_hHeight;
					if (tmpH <= 0) {
						tmpH += ((NS)?clip.height:offsetHeight);
					}
         			 if ((0 <= tmpX && tmpX < tmpW && 0 <= tmpY && tmpY < tmpH) && (maxDragZ == null || maxDragZ <= aLayerZ)) { 
         			 	curDrag = aLayer; maxDragZ = aLayerZ; 
         			 }
         		}
         	}
    	  	if (curDrag) {
        		document.onmousemove = MM_dragLayer; 
        		if (NS) {
        			document.captureEvents(Event.MOUSEMOVE);
        		}
       			curLeft = (NS)?curDrag.left:curDrag.style.pixelLeft;
       			curTop = (NS)?curDrag.top:curDrag.style.pixelTop;
       			MM_oldX = mouseX - curLeft;
       			MM_oldY = mouseY - curTop;
       			document.MM_curDrag = curDrag;
       			curDrag.MM_SNAPPED = false;
        		if(curDrag.MM_toFront) {
          			eval('curDrag.' + ((NS)?'':'style.') + 'zIndex = document.MM_maxZ + 1');
          			if (!curDrag.MM_dropBack){
          				document.MM_maxZ++; 
          			}
          		}
        		retVal = false;
        		if(!NS){ 
        			event.returnValue = false;
        		}
    		} 
    	} else if (theEvent == 'mousemove') {
      		if (document.MM_curDrag) with (document.MM_curDrag) {
        		var mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
        		var mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
        		newLeft = mouseX - MM_oldX;
        		newTop  = mouseY - MM_oldY;
       			if (MM_bL!=null) {
       				newLeft = Math.max(newLeft,MM_bL);
       			}
        		if (MM_bR!=null) {
        			newLeft = Math.min(newLeft,MM_bR);
        		}
       			if (MM_bT!=null) {
       				newTop = Math.max(newTop ,MM_bT);
       			}
        		if (MM_bB!=null) {
        			newTop  = Math.min(newTop ,MM_bB);
        		}
        		MM_LEFTRIGHT = newLeft - MM_startL; 
        		MM_UPDOWN = newTop - MM_startT;
        		if (NS) {
        			left = newLeft;
        			top = newTop;
        		}else {
        			style.pixelLeft = newLeft; 
        			style.pixelTop = newTop;
        		}
       			if (MM_dragJS) {
       				eval(MM_dragJS);
       			}
        		retVal = false;
        		if(!NS){
        			event.returnValue = false;
        		}
    		} 
    	} else if (theEvent == 'mouseup') {
      		document.onmousemove = null;
     		if (NS){
     			document.releaseEvents(Event.MOUSEMOVE);
     		}
      		if (NS) {
      			document.captureEvents(Event.MOUSEDOWN); //for mac NS
      		}
      		if (document.MM_curDrag) with (document.MM_curDrag) {
        		if (typeof MM_targL == 'number' && typeof MM_targT == 'number' && 
        			(Math.pow(MM_targL - ((NS)?left:style.pixelLeft),2) + Math.pow(MM_targT - ((NS)?top:style.pixelTop),2)) <= MM_tol) {
         			if (NS) {
         				left = MM_targL;
         				top = MM_targT;
         			}else {
         				style.pixelLeft = MM_targL;
         				style.pixelTop = MM_targT;
         			}
          			MM_SNAPPED = true; 
          			MM_LEFTRIGHT = MM_startL - MM_targL; 
          			MM_UPDOWN = MM_startT - MM_targT;
          		}
        		if (MM_everyTime || MM_SNAPPED) {
        			eval(MM_dropJS);
        		}
        		if(MM_dropBack) {
        			if (NS){ 
        				zIndex = MM_oldZ;
        			}else{
        				style.zIndex = MM_oldZ;
        			}
        		}
       			retVal = false; 
       			if(!NS) {
       				event.returnValue = false; 
       			}
       		}
      		document.MM_curDrag = null;
    	}
    	if (NS){
    		document.routeEvent(objName);
    	}
  	}
	return retVal;
}

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];
   		}
   	}
}

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;
	} 
}

/* 跳转菜单 */
function MM_jumpMenu(targ,selObj,restore){ //v3.0
	eval(targ+".location='" + selObj.options[selObj.selectedIndex].value + "'");
  	if (restore) {
		selObj.selectedIndex = 0;
  	}
}

function trim(str){
   return str.replace(/(^\s*)|(\s*$)/g, "");
}

/* 改变item */
function switchItem(itemname){
	var objobject = document.all(itemname);
	if (objobject.style.display == "none"){
	  objobject.style.display = "block";
	}else{
	  objobject.style.display = "none";
	}
}

/* 提交form */
function FormSubmit(formname){
	document.all(formname).submit();
}

function closewindow() {
	result = confirm("Are you sure to exit?");
	if (result){
		window.parent.parent.close();
	}
}


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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}


/* 更新在线时间 */
function updateonlinetime(){
	var ran = Math.random();
	new Ajax.Request("/nce/updateOnlineTime.htm?ran="+ran, 
		{method: 'get',onSuccess: function(){}, onFailure: function(){ alert('Something went wrong...')}})
	setTimeout( updateonlinetime, 300000 );
}

/* 动态创建IFrame */
function createIFrame(name,src){
	var oIFrame = document.all(name);
	if(!oIFrame){
		var newIFrame = document.createElement("iframe");
		newIFrame.width = 0;
		newIFrame.height = 0;
		newIFrame.frameBorder = 0;
		newIFrame.name = name;
		newIFrame.id = name;
		newIFrame.src = src;
		document.body.appendChild(newIFrame);
	}	
}

function doLater() {
	createIFrame("hiddenIFrame","/nce/updateonlineiframe.html");
}

setTimeout(doLater,5000);