//Chrome Drop Down Menu- Author: Dynamic Drive (http://www.dynamicdrive.com)
//Last updated: Jan 1st, 06'

var cssdropdown={
disappeardelay: 250, //set delay in miliseconds before menu disappears onmouseout

//No need to edit beyond here////////////////////////
dropmenuobj: null, ie: document.all, firefox: document.getElementById&&!document.all,

getposOffset:function(what, offsettype){
var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
var parentEl=what.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
},

showhide:function(obj, e, visible, hidden){
if (this.ie || this.firefox)
this.dropmenuobj.style.left=this.dropmenuobj.style.top="-500px"
if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
obj.visibility=visible
else if (e.type=="click")
obj.visibility=hidden
},

iecompattest:function(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
},

clearbrowseredge:function(obj, whichedge){
var edgeoffset=0
if (whichedge=="rightedge"){
var windowedge=this.ie && !window.opera? this.iecompattest().scrollLeft+this.iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetWidth
if (windowedge-this.dropmenuobj.x < this.dropmenuobj.contentmeasure)  //move menu to the left?
edgeoffset=this.dropmenuobj.contentmeasure-obj.offsetWidth
}
else{
var topedge=this.ie && !window.opera? this.iecompattest().scrollTop : window.pageYOffset
var windowedge=this.ie && !window.opera? this.iecompattest().scrollTop+this.iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetHeight
if (windowedge-this.dropmenuobj.y < this.dropmenuobj.contentmeasure){ //move up?
edgeoffset=this.dropmenuobj.contentmeasure+obj.offsetHeight
if ((this.dropmenuobj.y-topedge)<this.dropmenuobj.contentmeasure) //up no good either?
edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge
}
}
return edgeoffset
},

dropit:function(obj, e, dropmenuID){
if (this.dropmenuobj!=null) //hide previous menu
this.dropmenuobj.style.visibility="hidden"
this.clearhidemenu()
if (this.ie||this.firefox){
obj.onmouseout=function(){cssdropdown.delayhidemenu()}
this.dropmenuobj=document.getElementById(dropmenuID)
this.dropmenuobj.onmouseover=function(){cssdropdown.clearhidemenu()}
this.dropmenuobj.onmouseout=function(){cssdropdown.dynamichide(e)}
this.dropmenuobj.onclick=function(){cssdropdown.delayhidemenu()}
this.showhide(this.dropmenuobj.style, e, "visible", "hidden")
this.dropmenuobj.x=this.getposOffset(obj, "left")
this.dropmenuobj.y=this.getposOffset(obj, "top")
this.dropmenuobj.style.left=this.dropmenuobj.x-this.clearbrowseredge(obj, "rightedge")+"px"
this.dropmenuobj.style.top=this.dropmenuobj.y-this.clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+1+"px"
}
},

contains_firefox:function(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;
},

dynamichide:function(e){
var evtobj=window.event? window.event : e
if (this.ie&&!this.dropmenuobj.contains(evtobj.toElement))
this.delayhidemenu()
else if (this.firefox&&e.currentTarget!= evtobj.relatedTarget&& !this.contains_firefox(evtobj.currentTarget, evtobj.relatedTarget))
this.delayhidemenu()
},

delayhidemenu:function(){
this.delayhide=setTimeout("cssdropdown.dropmenuobj.style.visibility='hidden'",this.disappeardelay)
},

clearhidemenu:function(){
if (this.delayhide!="undefined")
clearTimeout(this.delayhide)
}
}


/* 菜单项开始 */

document.write('<div id="chromemenu" align="center">');

document.write('		<table border="0" cellpadding="0" style="border-collapse: collapse">');
document.write('			<tr>');
document.write('				<td class="Text_white"><a class="Text_White" href="/index.html">');
document.write('网站首页</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_1.html" onMouseover="cssdropdown.dropit(this,event,\'dropmenu1\');">');
document.write('经典课堂</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_2.html" onMouseover="cssdropdown.dropit(this,event,\'dropmenu2\');">');
document.write('案例聚焦</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_6.html"  onMouseover="cssdropdown.dropit(this,event,\'dropmenu8\');">');
document.write('精品课件</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_14.html" onMouseover="cssdropdown.dropit(this,event,\'dropmenu6\');">');
document.write('教研文摘</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_4.html" onMouseover="cssdropdown.dropit(this,event,\'dropmenu3\');">');
document.write('教材研究</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_11.html" onMouseover="cssdropdown.dropit(this,event,\'dropmenu4\');">');
document.write('教学设计</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/html/Category_Content_19.html" onMouseover="cssdropdown.dropit(this,event,\'dropmenu5\');">');
document.write('主题探究</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_white" href="/Forum/default.asp">');
document.write('小数社区</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('				<td class="Text_white"><a class="Text_White" href="/jxgm/jxgm.htm" target="_blank" onMouseover="cssdropdown.dropit(this,event,\'dropmenu9\');">');
document.write('教学观摩</a></td>');
document.write('				<td class="Text_white">&nbsp;|&nbsp;</td>');
document.write('		</table>');
document.write('</div>');

document.write('<!--No.1 经典课堂 下拉菜单 -->');
document.write('<div id="dropmenu1" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_1_1.html">经典课堂</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_2_1.html">名家风采</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_75_1.html">名家论坛</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');


document.write('<!--No.2 案例聚焦 下拉菜单 -->');
document.write('<div id="dropmenu2" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_3_1.html">青年讲坛</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_5_1.html">自我反思</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_4_1.html">主题研究</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');

document.write('<!--No.3 教材研究 下拉菜单 -->');
document.write('<div id="dropmenu3" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_20_1.html">结构研究</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_21_1.html">比较研究</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_22_1.html">背景研究</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_23_1.html">细节研究</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');

document.write('<!--No.4 教学设计 下拉菜单 -->');
document.write('<div id="dropmenu4" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_38_1.html">一年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_39_1.html">二年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_40_1.html">三年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_41_1.html">四年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_42_1.html">五年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_43_1.html">六年级</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');

document.write('<!--No.5 主题探究 下拉菜单 -->');
document.write('<div id="dropmenu5" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_77_1.html">开发说明</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_78_1.html">相关文件</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_79_1.html">编审往来</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('</table>');
document.write('</div>');

document.write('<!--No.6 教育文摘 下拉菜单 -->');
document.write('<div id="dropmenu6" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_54_1.html">教研文摘</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_53_1.html">教育文摘</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');

document.write('<!--No.8 精品课件 下拉菜单 -->');
document.write('<div id="dropmenu8" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_28_1.html">一年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_29_1.html">二年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_30_1.html">三年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_31_1.html">四年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_32_1.html">五年级</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_33_1.html">六年级</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');

document.write('<!--No.9 教学观摩 下拉菜单 -->');
document.write('<div id="dropmenu9" class="dropmenudiv">');
document.write('<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_73_1.html">相关信息</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_68_1.html">教坛新星</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_69_1.html">教案实录</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_71_1.html">教学课件</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_70_1.html">反思评价</a></td>');
document.write('	</tr>');
document.write('	<tr>');
document.write('		<td><a href="/html/Content_72_1.html">教学视频</a></td>');
document.write('	</tr>');
document.write('</table>');
document.write('</div>');