/* preload subnav images to avoid flicker */
var sn_hov_t = new Image();
var sn_hov_b = new Image();
sn_hov_t.src = "_i/subnav_bg_hover_t.gif";
sn_hov_b.src = "_i/subnav_bg_hover_b.gif";

/* pop up functions */
function openWin(wName, wWidth, wHeight, wResize){
	features = 'scrollbars=1,status=1,resizable=' + ((wResize) ? 1 : 0) + ((wWidth) ? ',width=' + wWidth : '') + ((wHeight) ? ',height=' + wHeight : '');
	popWin = window.open('', wName, features);
	if(popWin.focus) { popWin.focus(); }
	return true;
}


var newWindow = null;

function closeWin(){
	if (newWindow != null){
		if(!newWindow.closed)
			newWindow.close();
	}
}

function popUpWin(url, strWidth, strHeight){
	closeWin();
	var tools = "resizable=false,toolbar=no,location=no,scrollbars=yes,menubar=no,width="+strWidth+",height="+strHeight+",top=0,left=0";
	newWindow = window.open(url, 'newWin', tools);
	newWindow.focus();
}