//hook the window load event ("event" argument will be automatically populated by standard browsers)
window.onload = function WindowLoad(event) {
    //get list of all span elements:
    var arrElements = document.getElementsByTagName("img");
    // var element = document.getElementById("Home")
    // var element2 = document.getElementById("homecontent")
    // F_loadRollover(element, 'contact_page.gif')
    //iterate over elements:
    for (var i = 0; i < arrElements.length; i++) {
        //get pointer to current element:
        var element = arrElements[i];

        //check for desired attribute:
        if (element.attributes["mycolor"]) {
            //found... hook element with our global event handler:
            element.onmouseover = MyMouseOver;
            element.onmouseout = MyMouseOut;
        }
    }
}