function openWithParams(uri, uriParams, openParams) {

	var putItThere = null;

	var chasm = screen.availWidth;
	var mount = screen.availHeight;

	var w = chasm / 4 * 3;
	var h = mount / 2;
	
	var parts = [];
	var i = 0;
		for (var name in uriParams) {
			var value = uriParams[name];
			parts[i] = name + "=" + escape(value);
			i++;
		}
	uri += "?" + parts.join("&");
	window.open(uri, "paypal", 'width=' + w + ',height=' + h + ',left=' + ((chasm - w - 10) * .9) + ',top=' + ((mount - h - 30) * .45) + ',status=1, scrollbars=1, resizable=1'  );
}