if (document.images) {
	
	//nav
	var n1 = newImage('assets/hm/hm_nav1.gif');
	var n2 = newImage('assets/hm/hm_nav2.gif');
	var n3 = newImage('assets/hm/hm_nav3.gif');
	var n4 = newImage('assets/hm/hm_nav4.gif');
	var n5 = newImage('assets/hm/hm_nav5.gif');
	var n6 = newImage('assets/hm/hm_nav6.gif');
	var n7 = newImage('assets/hm/hm_nav7.gif');
	var n8 = newImage('assets/hm/hm_nav8.gif');		

	var n1_o = newImage('assets/hm/hm_nav1_o.gif');
	var n2_o = newImage('assets/hm/hm_nav2_o.gif');
	var n3_o = newImage('assets/hm/hm_nav3_o.gif');
	var n4_o = newImage('assets/hm/hm_nav4_o.gif');
	var n5_o = newImage('assets/hm/hm_nav5_o.gif');
	var n6_o = newImage('assets/hm/hm_nav6_o.gif');
	var n7_o = newImage('assets/hm/hm_nav7_o.gif');
	var n8_o = newImage('assets/hm/hm_nav8_o.gif');

}
	
	



var sfx;
function roll(name, aOn){
	if (document.images) { 
	 
		if (aOn){
		document.images['nav' + name].src=eval("n" + name + "_o.src"); //text
		}
		else{
		document.images['nav' + name].src=eval("n" + name + ".src"); //text
		}
		
	}

}


function newImage(src) {
        var anImg = new Image;
        anImg.src = src;
        return anImg;
}


//popup window
var myWin = null;
function gen_popup(theUrl,theTitle,theDim) {
	if ((! myWin) || (myWin.closed)) {
		if (! theDim) {
			theDim = 'width=640,height=400,scrollbars=yes,resizable=yes,menubar=yes';
		}
		myWin = window.open(theUrl,theTitle,theDim);
		myWin.opener = window;
	} else {
		myWin.location = theUrl;
		myWin.focus();
		myWin.opener = window;
	}
}