function getQueryString( sProp ) {
	var re = new RegExp( sProp + "=([^\\&]*)", "i" );
	var a = re.exec( document.location.search );
	if ( a == null )
		return "";
	return a[1];
};

function changeCssFile( sCssFile ) {
	var loc = String(document.location);
	var search = document.location.search;
	if ( search != "" )
		loc = loc.replace( search, "" );
	loc = loc + "?css=" + sCssFile;
	document.location.replace( loc );
}

var cssFile = getQueryString( "css" );
if ( cssFile == "" )
	cssFile = "bluecurve.css";

document.write("<link type=\"text/css\" rel=\"StyleSheet\" href=\"" + cssFile + "\" />" );

window.onresize = function () {
	s2.recalculate();
};