function setEl(ID, val){
		var el = document.getElementById(ID);
		if(!el) alert("getEl("+ID+") == "+el);
		el.value = val;
	}

	function getEl(ID){
		var el = document.getElementById(ID);
		if(!el) alert("getEl("+ID+") == "+el);
		return el.value;
	}

        function getID(ID){
		var el = document.getElementById(ID);
		if(!el) alert("getID("+ID+") == "+el);
		return el;
	}
		
	function isSetID(ID){
		var val = getEl(ID);
		return val != undefined && val != '';
	}

	function isNonZeroID(ID){
		var val = getEl(ID);
		var n   = Number(val);
		return n!=0;
	}
	
	function getObject(ID){
		var theObj = getID(ID);
		theObj = theObj.style ;
		return theObj;
	}

	function shiftTo(obj, x, y){
		var theObj = getObject(obj);
		if(theObj){
			var units = (typeof theObj.left == 'string') ? 
					"px" : "px";
			theObj.left = x + units;
			theObj.top  = y + units;
		} 
		window.moveTo(0,0);
	}