function getX(obj){

	var x = 0;

	while(obj.offsetParent) {
		x += obj.offsetLeft;
		obj = obj.offsetParent;
	}

	return x;

}

function getY(obj){

	var y = 0;

	while(obj.offsetParent) {
		y += obj.offsetTop;
		obj = obj.offsetParent;
	}

	return y;

}

function fb_positioning () {
 
	var frame = document.getElementById("fb");
	var document_width = document.documentElement.clientWidth;
	var main_table_x = getX(document.getElementById("main_table"));
	var main_table_width = document.getElementById("main_table").offsetWidth;

	var bum = main_table_x + main_table_width; 
	//alert (document_width);
	//alert (main_table_x);
	//alert (main_table_width);
	frame.style.left = bum + 1 + "px";
 
 
	var frame = document.getElementById("rn");
	var document_width = document.documentElement.clientWidth;
 
	frame.style.left = bum + 1 + "px";
}