function tabit(btn)
{
	var idname = new String(btn.id);
	var s = idname.indexOf("_");
	var e = idname.lastIndexOf("_")+1;
	var tabName = idname.substr(0, s);
	var id = parseInt(idname.substr(e, 1));
	var tabNumber = btn.parentNode.childNodes.length;
	for(i=0;i<tabNumber;i++)
	{
		document.getElementById(tabName+"_div_"+i).style.display = "none";
		document.getElementById(tabName+"_btn_"+i).style.backgroundImage = "url(../images/yj.gif)";
		document.getElementById(tabName+"_btn_"+i).style.cursor = "pointer";
		};
	document.getElementById(tabName+"_div_"+id).style.display = "block";
	btn.style.backgroundImage = "url(../images/yj_white.gif)";
	btn.style.borderBottomColor = "#fff";
	btn.style.cursor = "default";
}
function setBg(OverObj)
{
	for(i=0;i<6;i++)
	{
		try{document.getElementById("tabap3_btn_"+i).className="lst";}catch(e){}
		try{document.getElementById("tabap3_div_"+i).style.display="none";}catch(e){}
		
	}
	try{document.getElementById("tabap3_btn_"+OverObj).className="curr";}catch(e){}
	try{document.getElementById("tabap3_div_"+OverObj).style.display="";}catch(e){}
}


/*第一种形式 第二种形式 更换显示样式*/
function setTab(name,cursel,n){
	for(i=1;i<=n;i++){
		try{
			var menu=document.getElementById(name+i);
		
			menu.className=i==cursel?"hover":"";
		}catch(e){}
		try{document.getElementById("sub_"+name+"_"+i).style.display = i==cursel?"block":"none";}catch(e){}
	}
}