// JavaScript Document
var layerLeft = 0;
var layerTop = 0;
$(document).ready(function(){
	layerLeft = ($("#outertable").offset()).left + $("#outertable").width();
	layerTop = $(window).height() / 2;
	$(function(){
		var userAgent = navigator.userAgent.toLowerCase();
		var userBrowserName  = navigator.appName.toLowerCase();
		// Figure out what browser is being used
		$.browser = {
			version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
			safari: /webkit/.test( userAgent ),
			opera: /opera/.test( userAgent ),
			msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
			mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent ),
			name:userBrowserName
		};
	});
	//alert($.browser.name+$.browser.version);
	//if (($.browser.name+$.browser.version)=='microsoft internet explorer6.0') {
	if (($.browser.name)=='microsoft internet explorer') {
		$("#backToTopLayer").css('left',layerLeft);
	}else{
		if ($.browser.name == 'netscape') {
			temp = $.browser.version.split('.');
			if ((temp[0] == '1')&&(temp[1] == '9')) {
				$("#backToTopLayer").css('left',layerLeft);
			}else{
				if (temp[0] == '1') {
					$("#backToTopLayer").css('left',layerLeft-17);
				}else{
					$("#backToTopLayer").css('left',layerLeft);
				}
			}
		}else{
			$("#backToTopLayer").css('left',layerLeft-17);
		}
	}
	$("#backToTopLayer").css('top',layerTop);
	$("#backToTopLayer").html('<a href="javascript:;"><img src="images/btn_top.gif" border="0" id="backToTopimage" onclick="slowScroll()"></a>');
	

});
function slowScroll() {
	while ($(window).scrollTop() > 0) {
		if ($(window).scrollTop() > 30) {
			$(window).scrollTop($(window).scrollTop()-30);
		}else{
			$(window).scrollTop(0);
		}
	}
}
$(window).resize(function(){
	layerLeft = ($("#outertable").offset()).left + $("#outertable").width();
	layerTop = $(window).height() / 2;
	if (($.browser.name)=='microsoft internet explorer') {
		$("#backToTopLayer").css('left',layerLeft);
	}else{
		if ($.browser.name == 'netscape') {
			temp = $.browser.version.split('.');
			if ((temp[0] == '1')&&(temp[1] == '9')) {
				$("#backToTopLayer").css('left',layerLeft);
			}else{
				if (temp[0] == '1') {
					$("#backToTopLayer").css('left',layerLeft-17);
				}else{
					$("#backToTopLayer").css('left',layerLeft);
				}
			}
		}else{
			$("#backToTopLayer").css('left',layerLeft-17);
		}
	}
	$("#backToTopLayer").css('top',layerTop);
});

$(window).scroll(function(){
	$("#backToTopLayer").stop(true,false);
	layerTop = ($(window).height() / 2) + $(window).scrollTop() ;
	$("#backToTopLayer").animate( { top:layerTop }, 1000);
});