// main navigation rollovers

if (document.images) {
var first_image = new Image();
first_image.src = "/graphics/main_nav03/blank.gif";
var second_image = new Image();
second_image.src = "/graphics/main_nav03/arrow.gif";
var third_image = new Image();
}

function revert(button) {
        if (document.images) {
        var img_off;
        var image_off1="/graphics/main_nav03/blank.gif";
        if (button < 8) { img_off = image_off1; }
        else { img_off = image_off2; }
        var buttonoff = eval("document.button" + button)
        buttonoff.src = img_off;
	}
}
function roll(num) {
        if (document.images) {
        var img;
        var image_on1="/graphics/main_nav03/arrow.gif";
        if (num < 8) { img = image_on1; }
        else { img = image_on2; }
        var buttonon = eval("document.button" + num);
        buttonon.src = img;
	}
}

//mail to popup

function pop_up(url, myname, wi, ht) {
var winl = (screen.width - 400) / 2;
var wint = (screen.height - 500) / 2;

var winprops = 'height=500,width=400,top='+wint+',left='+winl+',scrollbars=no, resize=no';

var win = window.open(url,myname,winprops);
if (parseInt(navigator.appVersion) >=4) {win.window.focus();}
}