Using offsets to fine-tune placement

	// parseInt() stands for parse integer
	// it gets the number portion of a string, for example:
	var position = parseInt('234px'); // equals 234
	// how to get the current position of something:	
	var currentTop	=parseInt( document.getElementById('thingID') );
	var currentLeft	=parseInt( document.getElementById('thingID').style.left );
	// add the offsets...
	var newTop	=currentTop -5;
	var newLeft	=currentLeft -5;
	// and move into the new position 
	document.getElementById('thingID')	=newTop +'px';
	document.getElementById('thingID').style.left	=newLeft +'px';