[SOLVED] is null or not an object error

[gevans]

Hey guys I'm using the following bit of javascript for an image swap;

 

var linkImgs = new Array();
window.onload = function() {
    var nav = document.getElementById('main-nav');
    linkImgs = nav.getElementsByTagName('img');
    for(var i=1;i<=linkImgs.length;i++) {
        linkImgs[i].onmouseover = function() { 
            if(this.className != 'selected_nav') {
                if(!this.src.match('_hover')) {
                    var tmpSrc = this.src.replace('.gif', '_hover.gif');
                    this.src = tmpSrc;
                }
            }
        }
    }
}

 

In IE6, 7 and 8 I get the following error message;

 

'linkImgs[...]' is null or not an object

 

I've been playing with it for a couple of days, but can't seem to sort it out, any ideas?

[gevans]

Well, after a couple of days of work, re-writing the error in front of myself prompted me with something.

 

Fixed..