var navi = new Array("images/frame/folioN.jpg", "images/frame/folioM.jpg", "images/frame/folioY.jpg, "images/frame/pricingN.jpg", "images/frame/pricingM.jpg", "images/frame/pricingY.jpg", "images/frame/contactN.jpg", "images/frame/contactM.jpg", "images/frame/contactY.jpg", "images/porttitle.jpg", "images/portoriginal.jpg", "images/contacttitle.jpg", "images/contactoriginal.jpg", "images/pricetitle.jpg", "images/priceoriginal.jpg");

var preload = new Array();

for(var i = 0; i < navi.length; i++ )
{
  preload[ i ] = new Image();
  preload[ i ].src = navi[i];
}