ver4 = (document.layers || document.all) ? 1 : 0;

    if (document.images) {
        arImageSrc = new Array (
        "menu_home.gif", 
	    "menu_home_down.gif",
 	    "menu_home_over.gif", 
        "menu_contact.gif", 
	    "menu_contact_down.gif",
 	    "menu_contact_over.gif", 
        "menu_download.gif", 
	    "menu_download_down.gif",
 	    "menu_download_over.gif", 
        "menu_achieved.gif", 
	    "menu_achieved_down.gif",
 	    "menu_achieved_over.gif", 
        "menu_community.gif", 
	    "menu_community_down.gif",
 	    "menu_community_over.gif", 
        "menu_education.gif", 
	    "menu_education_down.gif",
 	    "menu_education_over.gif", 
        "menu_interests.gif", 
	    "menu_interests_down.gif",
 	    "menu_interests_over.gif",
        "menu_technical.gif", 
	    "menu_technical_down.gif",
 	    "menu_technical_over.gif",
        "menu_training.gif", 
	    "menu_training_down.gif",
 	    "menu_training_over.gif",
        "menu_work.gif", 
	    "menu_work_down.gif",
 	    "menu_work_over.gif")

        arImageList = new Array ();
        for (counter in arImageSrc) {
            arImageList[counter] = new Image();
            arImageList[counter].src = arImageSrc[counter];
        }
    };

    function rollOver(imName,over) {
        if (!document.images) {return};
        whichIm = document.images[imName];
        if (over) { whichIm.src = imName + "_over.gif" }
             else { whichIm.src = imName + ".gif" };
    }

    function rollClick(imName) {
        if (!document.images || ver4) {return};
        whichIm = document.images[imName];
        whichIm.src = imName + "_down.gif";
        dummy = setTimeout("whichIm.src = \"" + imName + "_over.gif\"",100);
    }

    function rollPress(imName,down) {
        whichIm = document.images[imName];
        if (down) { whichIm.src = imName + "_down.gif" }
             else { whichIm.src = imName + "_over.gif" }
    }