var x,y;
var bd_ht = document.body.scrollHeight;
var bd_wd = document.body.offsetHeight

if (bd_ht > bd_wd) // all but Explorer Mac
{
	x = document.body.scrollWidth;
	y = document.body.scrollHeight;
}
else // Explorer Mac;
     //would also work in Explorer 6 Strict, Mozilla and Safari
{
	x = document.body.offsetWidth;
	y = document.body.offsetHeight;
}

if(screen.width == 800){
if(y>5000 && y<7000){
	y = y + 750;
}else if(y >= 7000){	
	y = y + 1600;
}else{
	y = y-100;
}
}
if(screen.width == 1024)
{
if(y>4200 && y<6000){
	y = y +150;
}else if(y >= 6000){	
	y = y + 630;
}else{
	y = y - 150;
}
}
if(screen.width == 1280)
{
if(y>2000 && y<3900){
	y = y - 200;
}else if(y >= 3900){	
	y = y +300;
}else{
	y = y - 200;
}
}

ht = y-300;

document.getElementById('lft_tbl').style.height = ht;
//document.getElementById('rht_tbl').style.height = ht;

//document.getElementById('ftr').style.position = "absolute";
//document.getElementById('ftr').style.left = 0;
//document.getElementById('ftr').style.top= y;

//alert(document.body.scrollHeight);