//<--
nm=4;
sstr="/images/banner_";
eos=".jpg";

imgs=new Array(nm*2);
for (i=1;i<=nm*2;i++) { imgs[i] = new Image(); imgs[i].src=sstr+i+eos;}


function change(e,m) {
 e=e.srcElement;
	if (e.tagName!="IMG") return true;
 var str=e.src;
 var i=str.indexOf(sstr);
	if (i==-1) return true;
 var n=parseInt(str.substring(str.length-4,i+sstr.length))+m;

 e.src=imgs[n].src;
}

function over() { change(window.event,1); }
function out() { change(window.event,-1); }

document.onmouseover=over;
document.onmouseout=out;

//-->