function showtab(btnid,tabid,tabnumber)//点击按钮ID，舌签区ID，舌签数量
{
	for (i = 1;i<=tabnumber;i++)
	{
		document.getElementById(tabid+"_btn"+i).className = "tabpane";
		document.getElementById(tabid+"_sub"+i).style.display = "none";
	}
	document.getElementById(tabid+"_btn"+btnid).className = "select";
	document.getElementById(tabid+"_sub"+btnid).style.display = "";
}

function docontent(size){
		document.getElementById('content').style.fontSize=size+'px';
	}