function getlength()
{ 
 var obj1=document.getElementById("righttable");
 var obj2=document.getElementById("lefttable");
 var obj3=document.getElementById("total");
var lh=document.getElementById("rightside");
var rh=document.getElementById("leftside");
var nh=document.getElementById("left1side");

var lh1=lh.offsetHeight;
var rh1=rh.offsetHeight;

var one=obj3.offsetHeight;
  if(lh1>rh1)
  nh.height=lh1;
  else
  nh.height=rh1;


  
obj1.height=one;
obj2.height=one;
  
}