//--------------- 生成主菜单 ------------//
function showToolbar(){
document.write("<table  border=0 cellspacing=0 cellpadding=0><tr><td><div id='wall'  style='position:relative; left:0px; top:0px; width:100%; z-index:1' >");

document.write("<table width=750 height=25  border=0 cellspacing=0 cellpadding=0><tr><td bgcolor='"+mainTableBgcolor+"'>")
	document.write("<table width=100% border='"+mainTableBorder+"' cellspacing='"+mainTableCellpadding+"' cellpadding='"+mainTableCellpadding+"' bgcolor='"+mainTableBgcolor+"' bordercolor='"+mainTableBordercolor+"' background='"+mainTableBackgroundImg+"' height=><tr background=''>");
	for(i=0;i<mainLayer.length;i++){
		if(i!=mainLayer.length-1){
			document.write("<td id=mainNav background='"+mainTableTdBackgroundImg+"' align=center width='"+mainTableTdWidth+"' bgcolor='"+mainTableTdBgcolor+"' class='"+hrefClassName+"' onmouseout=layervib('hidden','"+i+"');mClick()   onmouseover=\"layervib('visible','"+i+"');mClick('"+i+"')\"  onmouseover= \"this.style.cursor = 'hand'\" style='left:"+i*(750/mainLayer.length)+"px;BORDER-right: 1px solid #ffffff;'><a href='"+mainLayerHttp[i]+"'   class=white>"+mainLayer[i]+"</a></td>");//750为菜单总长
		}else{//最后一条线去掉
			document.write("<td id=mainNav background='"+mainTableTdBackgroundImg+"' align=center width='"+mainTableTdWidth+"' bgcolor='"+mainTableTdBgcolor+"' class='"+hrefClassName+"' onmouseout=layervib('hidden','"+i+"');mClick() onmouseover=\"layervib('visible','"+i+"');mClick('"+i+"')\"  onmouseover= \"this.style.cursor = 'hand'\" style='left:"+i*(720/mainLayer.length)+"px;'><a href='"+mainLayerHttp[i]+"'  class=white>"+mainLayer[i]+"</a></td>");//最后一个720长度，可以控制最后一个下拉不超出页面外
		}
	}
//document.write("<td weight=5>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<td>")//zx,用来控制菜单上的内容紧密度,如果字很多,将此项去掉
	document.write("</tr></table>");
document.write("</td></tr></table>");


//子菜单
for(j=0;j<mainLayer.length;j++){
	createSubLayer(j);
}

document.write("</td></tr></table>");
}

//--------------- 生成下拉菜单内容 ------------//
function createSubLayer(num){
	
var	leftwidth=mainNav[num].style.left//根据每个表格的位置确定图层的位置
var subLayerName= layerName +num;
var subLayerLeft=(mainTableTdWidth*num)+mainTableCellpadding+mainTableBorder;
var subLayerList=eval("subLayer"+num);
var subLayerHttpList=eval("subLayerHttp"+num);
i=num
document.write("<div id='"+subLayerName+"' style='position:absolute;layer-background-color:#;left:"+(parseInt(leftwidth))+"px; top:"+((mainTableBorder+mainTableCellspacing+mainTableCellpadding)*2+sbuTabbleTop)+"px; z-index:0; height: 2 px; visibility: hidden' onmouseout=layervib('hidden','"+i+"');mClick()   onmouseover=\"layervib('visible','"+i+"');mClick('"+i+"')\">");


if(subLayerList.length!=0){
document.write("<table><tr><td height=5></td></tr></table><table align=center  border='"+subTableBorder+"' cellspacing='"+subTableCellpadding+"' cellpadding='"+subTableCellpadding+"' bgcolor='"+subTableBgcolor+"' bordercolor='"+subTableBordercolor+"' background='"+subTableBackgroundImg+"' style='border: 1px solid #cccccc;' width="+((750/mainLayer.length)+20)+" style='filter:progid:DXImageTransform.Microsoft.Shadow(color=#999999,direction=135,strength=2);'   ")
for(h=0;h<subLayerList.length;h++){
	if(h!=subLayerList.length-1){
		document.write("<tr height=20><td width=5></td><td style='BORDER-bottom:1px solid #BDBEBD;'><a href='"+ subLayerHttpList [h]+"' class='black'>"+subLayerList[h]+"</a></td><td width=5></td></tr>");
	}else{//最后一条横线没有
		document.write("<tr height=20><td width=5></td><td><a href='"+ subLayerHttpList[h]+"' class='black' >"+subLayerList[h]+"</a></td><td width=5></td></tr>");
	}
}
document.write("</table>");
}
document.write("</div>");
}

//------------------------------次菜单显隐控制--------------------------//
function layervib(type,num){
	var H=type;
	var temp=(H='visible'?'hidden':'visible')//目的取得与type相反的值
	for(var i=0;i<mainLayer.length;i++){
		var E=eval('document.all.index'+i+'.style');//eval:检查 JScript 代码并执行,因为里面有document的JS代码
		//var H=eval(i);
		if(i==num){E.visibility=type}else{E.visibility=temp};
	}
}

function layervib_test(type,num){
var E=eval('document.all.index'+num+'.style');//eval:检查 JScript 代码并执行
E.visibility='visible';
var E=eval()
}


//-------------------让表格发生颜色变化 ----------
<!--//contains:是否包含括号里的元素，fromelement：在onmouseover下元素发生改变
  function mClick(num) {
	  for(var i=0;i<mainLayer.length;i++){
		 if(i==num){
			mainNav[i].style.cursor = 'hand'
			//mainNav[i].background='../images/navitemback2.gif'//点击主菜单单元格背景变化
			//mainNav[i].color='#FF0000';
			mainNav[i].bgColor='#2273B4'//点击主菜单变色处
			//mainNav[i].className='Alpha'//点击主菜单变透明处
			//if(i==0){
				//mainNav[i].background='../images/navfirstback2.gif'
			//}
			
		 }
		 else{
			//mainNav[i].background='../images/navitemback.gif'
			//if(i==0){
				//mainNav[i].background='../images/navfirstback.gif'
				//mainNav[i].color='';
			//}
			mainNav[i].bgColor=''
			//mainNav[i].className=''
		 }		
	}
  }


// -->