function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		menu_home_over = newImage("/common/img/menu_home_over.gif");
		menu_greeting_over = newImage("/common/img/menu_greeting_over.gif");
		menu_outline_over = newImage("/common/img/menu_outline_over.gif");
		menu_organize_over = newImage("/common/img/menu_organize_over.gif");
		menu_question_over = newImage("/common/img/menu_question_over.gif");
		menu_inquiry_over = newImage("/common/img/menu_inquiry_over.gif");
		menu_products_over = newImage("/common/img/menu_products_over.gif");

		search_area_over = newImage("/common/img/search_area_over.gif");
		search_class_over = newImage("/common/img/search_class_over.gif");
		search_scene_over = newImage("/common/img/search_scene_over.gif");
		search_list_over = newImage("/common/img/search_list_over.gif");

		top_search_area_over = newImage("/images/top_search_area_over.gif");
		top_search_class_over = newImage("/images/top_search_class_over.gif");
		top_search_scene_over = newImage("/images/top_search_scene_over.gif");
		top_search_list_over = newImage("/images/top_search_list_over.gif");

		preloadFlag = true;
	}
}



// Get Browser Information

function getOsName( )

{

	var userOs      = "" ;

	var regexResult = "" ;

	var moreInfo    = true ;

	var usrAgent    = navigator.userAgent.toUpperCase( ) ;



	if ( usrAgent.indexOf("WIN") != -1 ) userOs = "Windows" ;

	if ( usrAgent.indexOf("MAC") != -1 ) userOs = "MacOS" ;

	if ( usrAgent.indexOf("X11") != -1 ) userOs = "UNIX" ;



	return userOs ;

}



function getBrowserName( )

{

	var userBrowser = "" ;

	var appName     = navigator.appName.toUpperCase( ) ;



	if ( appName.indexOf("NETSCAPE")  != -1 ) userBrowser = "Netscape" ;

	if ( appName.indexOf("MICROSOFT") != -1 ) userBrowser = "Explorer" ;



	return userBrowser ;

}



function getBrowserVersion( )

{

	var version    = "" ;

	var start      = 0  ;

	var end        = 0  ;

	var usrBrowser = getBrowserName( ) ;

	var usrAgent   = navigator.userAgent.toUpperCase( ) ;

	var appVersion = navigator.appVersion ;



	if ( usrBrowser == "Netscape" )

	{

		start   = appVersion.indexOf(" ",0) ;

		version = appVersion.substring(0,start) ;

	}

	if ( usrBrowser == "Explorer" )

	{

		start   = appVersion.indexOf("MSIE ",0) + 5 ;

		end     = appVersion.indexOf(";",start) ;

		version = appVersion.substring(start,end) ;

	}



	return version ;

}