function navHover(obj,url){
     obj.src=url;
}
var myimages = new Array();
function preloading(){
for (x=0; x<preloading.arguments.length; x++){
myimages[x] = new Image();
myimages[x].src = preloading.arguments[x];
}
}
preloading("image/m2_hover.jpg","image/m3_hover.jpg","image/m4_hover.jpg","image/m5_hover.jpg","image/m6_hover.jpg","image/m7_hover.jpg");
<!--
// original content taken from Nic's JavaScript Page with permission
// lack of these three lines will result in copyright infringment
// made by: Nic's JavaScript Page - http://www.javascript-page.com

var numtimes = 0;

function findinpage(str) {

if (str == "") return false;

if (document.layers) {
  if (!window.find(str)) {
    while(window.find(str, false, true))    n++;
  }
else numtimes++;

if (numtimes == 0) alert("The word \""+ str +"\" was not found on this page.");
}

if (document.all) {
var txt = window.document.body.createTextRange();
var found = txt.findText(str);

for (var i = 0; i <= numtimes && found != false; i++) {
  txt.moveStart("character", 1);
  txt.moveEnd("textedit");
}

if (found) {
  txt.moveStart("character", -1);
  txt.findText(str);
  txt.select();
  txt.scrollIntoView();
  numtimes++;
}

else {
  if (numtimes > 0) {
    numtimes = 0;
    findinpage(str);
  }

else alert("The word \""+ str +"\" was not found on this page.");
}
return false;
}
}

//-->