var ros=new Array('left','right');
var imgson=new Array();
var imgsoff=new Array();

function initimgs(){
	for(var i=0; i<ros.length; i++){
		imgson[i]=new Image();
		imgson[i].src="fileadmin/template/img/arrow."+ros[i]+".over.gif";
		imgsoff[i]=new Image();
		imgsoff[i].src="fileadmin/template/img/arrow."+ros[i]+".out.gif";
	}
}

function imageon(iname){
	for(var i=0; i<ros.length; i++){
		if (ros[i]==iname) document.getElementById(iname).src = imgson[i].src;
	}
}

function imageoff(iname){
	for(var i=0; i<ros.length; i++){
		if (ros[i]==iname) document.getElementById(iname).src = imgsoff[i].src;
	}
}

function on(name){
	imageon(name);
}

function off(name){
	imageoff(name);
}

initimgs();