function get_position_y() { 
	var de = document.documentElement; 
	var b = document.body;
	var temp;
	temp = document.all ? (!de.scrollTop ? b.scrollTop : de.scrollTop) : (window.pageYOffset ? window.pageYOffset : window.scrollY); 
	return temp;
}

function set_position(item, pos_x, pos_y, pad_x, pad_y) {
	var obj = document.getElementById(item);
	if (pos_x != '') {
		obj.style.left = pos_x + 'px';
	}
	if(obj.style.left != '') {
		obj.style.left = parseInt(obj.style.left) + pad_x + 'px';
	}
	if (pos_y != '') {
		obj.style.top = pos_y + 'px';
	}
	if(obj.style.top != '') {
		obj.style.top = parseInt(obj.style.top) + pad_y + 'px';
	}
}