MM_preloadImages('http://m.betcity.tw/tierimages/leftbar_button_news_01B.gif','http://m.betcity.tw/tierimages/leftbar_button_news_02B.gif','http://m.betcity.tw/tierimages/leftbar_button_news_03B.gif');
var queryString = window.top.location.search.substring(1);
function getParameter ( queryString, parameterName ) {
	// Add "=" to the parameter name (i.e. parameterName=value)
	var parameterName = parameterName + "=";
	if ( queryString.length > 0 ) {
		// Find the beginning of the string
		begin = queryString.indexOf ( parameterName );
		// If the parameter name is not found, skip it, otherwise return the value
		if ( begin != -1 ) {
		// Add the length (integer) to the beginning
			begin += parameterName.length;
			// Multiple parameters are separated by the "&" sign
			end = queryString.indexOf ( "&" , begin );
			if ( end == -1 ) {
				end = queryString.length
			}
			// Return the string
			var ret = unescape ( queryString.substring ( begin, end ) );
			return ret;
		}
		// Return "null" if no parameter has been found
		return "null";
	}
}

var menu = "";
var para = getParameter(queryString, 'module');
//var para2 = getParameter(queryString, 'action');
if(para=='news'){
	document.Image21.src="http://m.betcity.tw/tierimages/leftbar_button_news_01B.gif";
}
if(para=='prizelist'){
	document.Image22.src="http://m.betcity.tw/tierimages/leftbar_button_news_02B.gif";
}
if(para=='blackuser'){
	document.Image23.src="http://m.betcity.tw/tierimages/leftbar_button_news_03B.gif";
}