<!--
function preloadImages(){
if (document.images)
{
img1=new Image();
img1.src="./navbg3.jpg";
img2=new Image();
img2.src="./navbg3inv.jpg";
}
}

function showID(id,time){
    var obj = document.getElementById(id)
    //change the opacity for different browsers
    changeOpac("0", id)
    obj.style.visibility = "visible"
    opacity(id, "0", "100", time)

}

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;

    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var obj = document.getElementById(id).style;
    obj.opacity = (opacity / 100);
    obj.MozOpacity = (opacity / 100);
    obj.KhtmlOpacity = (opacity / 100);
    obj.filter = "alpha(opacity=" + opacity + ")";
}

function nav_act(act_id){
    var act = document.getElementById(act_id)
    act.className = 'nav_act'
}

// -->