Help understanding JavaScript Errors.

[milams]

Hi,

I am running a script on CSS Menu and in Netscape and Internet Explorer it's coming up with an error saying "objDropMenu has no properties" line 23(objDropMenu.style.visibility = 'hidden';). Can someone tell me what that means? I can't seem to see the Syntax error, but there is one right? I would appreciat any help. Here is the fist 27 lines of code. It says the error occurs on line 23.

var objNavMenu = null;
var prevObjNavMenu = null;
var prevObjDropMenu = null;
var numDropMenu = 7;
////// link styles
var bgLinkColor = '#F0D79F';
var bgLinkHover = '#000000'
var bgLinkActive = '#000000'
var linkColor = '#000000'
var linkHover = '#F0D79F'
var linkActive = '#F0D79F'

var isIE = null;
if (navigator.appName.indexOf('Microsoft Internet Explorer') != -1) isIE=1;

function initDropMenu () {
document.onclick = hideDropMenu;
for (i=1; i<=numDropMenu; i++) {
menuName = 'dropMenu' + i;
navName = 'navMenu' + i;
objDropMenu = document.getElementById(menuName);
objNavMenu = document.getElementById(navName); objDropMenu.style.visibility = 'hidden';
objNavMenu.onmouseover = showDropMenu;
objNavMenu.onmouseout = menuOut;
objNavMenu.onclick = showDropMenu;
}

 

[BillyRayPreachersSon]

The error, in your case, probably means that objDropMenu is referring to an element that doesn't exist - so either it hasn't loaded at the time you're calling the script, or there is no element with an ID of " 'dropMenu' + i ".

Put an alert in to see what 'menuName' is right before the error, then make sure you have an element with that ID.

Hope this helps,
Dan

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