// rollover code
function findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function rollover() { //v3.0
  var i,j=0,x,a=rollover.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function restore() { //v3.0
  var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

// preload images
  if (document.images) {
  nav_portfolio_f2 = new Image(97 ,13); nav_portfolio_f2.src = "img/nav_portfolio_f2.gif";
  nav_portfolio_f1 = new Image(97 ,13); nav_portfolio_f1.src = "img/nav_portfolio.gif";
  nav_about_f2 = new Image(97 ,11); nav_about_f2.src = "img/nav_about_f2.gif";
  nav_about_f1 = new Image(97 ,11); nav_about_f1.src = "img/nav_about.gif";
  nav_contact_f2 = new Image(97 ,10); nav_contact_f2.src = "img/nav_contact_f2.gif";
  nav_contact_f1 = new Image(97 ,10); nav_contact_f1.src = "img/nav_contact.gif";
  nav_img_01_f2 = new Image(16 ,16); nav_img_01_f2.src = "img/nav_img_01_f2.gif";
  nav_img_01_f1 = new Image(16 ,16); nav_img_01_f1.src = "img/nav_img_01.gif";
  nav_img_02_f2 = new Image(16 ,16); nav_img_02_f2.src = "img/nav_img_02_f2.gif";
  nav_img_02_f1 = new Image(16 ,16); nav_img_02_f1.src = "img/nav_img_02.gif";
  nav_img_03_f2 = new Image(16 ,16); nav_img_03_f2.src = "img/nav_img_03_f2.gif";
  nav_img_03_f1 = new Image(16 ,16); nav_img_03_f1.src = "img/nav_img_03.gif";
  nav_img_04_f2 = new Image(16 ,16); nav_img_04_f2.src = "img/nav_img_04_f2.gif";
  nav_img_04_f1 = new Image(16 ,16); nav_img_04_f1.src = "img/nav_img_04.gif";
  }