if(document.images){
 var onimg1=new Image();
var offimg1=new Image()
onimg1.src='onimg1.gif'
offimg1.src='offimg1.gif'

var onimg2=new Image();
var offimg2=new Image()
onimg2.src='onimg2.gif'
offimg2.src='offimg2.gif'

var onimg3=new Image();
var offimg3=new Image()
onimg3.src='onimg3.gif'
offimg3.src='offimg3.gif'

var onimg4=new Image();
var offimg4=new Image()
onimg4.src='onimg4.gif'
offimg4.src='offimg4.gif'

var onimg5=new Image();
var offimg5=new Image()
onimg5.src='onimg5.gif'
offimg5.src='offimg5.gif'

var onimg6=new Image();
var offimg6=new Image()
onimg6.src='onimg6.gif'
offimg6.src='offimg6.gif'

var onimg7=new Image();
var offimg7=new Image()
onimg7.src='onimg7.gif'
offimg7.src='offimg7.gif'

var onimg8=new Image();
var offimg8=new Image()
onimg8.src='onimg8.gif'
offimg8.src='offimg8.gif'

var onimg9=new Image();
var offimg9=new Image()
onimg9.src='onimg9.gif'
offimg9.src='offimg9.gif'        //slot for autonav preload
 }

function rollover(num){
 //document.linktext.linktextval.value=linktext;  //display linktext
 curr_pic=eval("'pic'+num");      //build imagename
 document.images[curr_pic].src=eval('onimg'+num+'.src')  //swap image
 }

function rollout(num){
 //document.linktext.linktextval.value="";    //clear textfield
 curr_pic=eval("'pic'+num");      //build imagename
 document.images[curr_pic].src=eval('offimg'+num+'.src')  //swap back
 }