if(document.images){
	<!--On & Off-->
	  but1=new Image();
	  but1.src="images/s-atd_expon.gif";
	  but2=new Image();
	  but2.src="images/s-atd_expof.gif";
	  but3=new Image();
	  but3.src="images/s-atd_mmon.gif";
	  but4=new Image();
	  but4.src="images/s-atd_mmof.gif";
	  but5=new Image();
	  but5.src="images/s-atd_soson.gif";
	  but6=new Image();
	  but6.src="images/s-atd_sosof.gif";
	  but7=new Image();
	  but7.src="images/s-atd_mdon.gif";
	  but8=new Image();
	  but8.src="images/s-atd_mdof.gif";
	  but9=new Image();
	  but9.src="images/s-atd_fifon.gif";
	  but10=new Image();
	  but10.src="images/s-atd_fifof.gif";
	  but11=new Image();
	  but11.src="images/s-atd_nxton.jpg";
	  but12=new Image();
	  but12.src="images/s-atd_nxtof.jpg";
	  but13=new Image();
	  but13.src="images/s-atd_gfbon.gif";
	  but14=new Image();
	  but14.src="images/s-atd_gfbof.gif";
}
	
	
function chkVer(imagename,objectsrc){
	var n=navigator.appName
	var v=parseInt(navigator.appVersion)
	var browsok=((n=="Netscape")&&(v>=3))
	var browsok2=((n=="Microsoft Internet Explorer")&&(v>=4))
	if((browsok)||(browsok2))
	document.images[imagename].src=eval(objectsrc+".src")
}

function Start(page){
	Openwin = this.open(page, "NewWin", "width=650,height=550,scrollbars=yes,resizable=yes,menubar,toolbar");

}

function defaultImage(id){
	elem = document.getElementById(id);
	var num = elem.getAttribute("onbut")
//	elem.removeAttribute('href')
// for IE
	elem.onmouseout="chkVer('button"+num+"','but"+num+"')"
// for FireFox
	elem.setAttribute("onMouseOut", function() {chkVer('button'+num,'but'+num);});
	chkVer('button'+num,'but'+num)
}