// JavaScript Document
//css高度自动适应

function lr_height(){
var cyy=document.getElementById("centetbox").clientHeight;
var ls2=document.getElementById("ls2").clientHeight;
var ls1=document.getElementById("ls1").clientHeight;
var ls3=document.getElementById("ls3").clientHeight;
var leftt=ls1+ls2+ls3;

var cbox;

if(leftt>cyy)
{
	
document.getElementById("centetbox").style.height=leftt+"px";
}
else
{
	cbox=cyy-ls1-ls3;
	
	document.getElementById("ls2").style.height=cbox+"px";
	document.getElementById("rs2").style.height=cbox+"px";
}
}

function a3_paper(){
var a3_paper=document.getElementById("a3_paper").clientHeight;
document.getElementById("a3_paper_leftline").style.height=a3_paper-98+"px";
}