function boot() {
	enableRollovers('rollover');
}

function enableRollovers(cn,preload) {
	var x, i, j, onSrc, offSrc;
	var all = document.getElementsByTagName("img");
	for (var i = 0; i < all.length; i++) {
		var t = all[i];
		if (t.className && (t.className.indexOf(cn) != -1) && (t.src.indexOf('_h.') == -1)) {
			offSrc = t.src;
      onSrc = (offSrc.substring(0,(j=offSrc.lastIndexOf('.'))))+'_h'+offSrc.substring(j);
      if (preload) { x = new Image(); x.src = onSrc; }
      t.onmouseover = new Function("this.src='" + onSrc + "';");
      t.onmouseout = new Function("this.src='" + offSrc + "';");
		}
	}
}

function displayMap(area) {
	window.open('/static/imagery/maps/kj_' + area.toLowerCase() + '.jpg', '_blank', 'width=520,height=540');
}