function newImage(arg) { if (document.images) { rslt = new Image(); rslt.src = arg; return rslt; } } function changeImages() { if (document.images && (preloadFlag == true)) { for (var i=0; i var preloadFlag = false; function preloadImages() { if (document.images) { //imageName = newImage("path"); preloadFlag = true; } } // usage // function openPopupWin(newUrl, win ,h, w) { var winl = (screen.width - w) / 2; var wint = (screen.height - h) / 2; winprops = 'toolbar=no,location=no,directories=no,status=no,menubar=no,height='+ h +',width='+ w +',top='+wint+',left='+winl+',scrollbars=1,resizable'; win = window.open(newUrl,win,winprops); if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); } return true; }