// JavaScript Document

/********************************************************************************
Top-page button
********************************************************************************/

var myplatform = navigator.userAgent;
var platform;
if (myplatform.indexOf('Mac') !=-1)  {
	platform = 'mac';
} else {
	platform = 'win';
}


function BackToTop()
{
	if (document.getElementById)
	{ scrollTo (0,0) ; }
}

function floating () {
	if (document.all) {
		
		if (platform == 'mac')
		{	
		}
		else
		{
			document.all.pagetop.style.pixelTop = document.body.clientHeight - 40 + document.body.scrollTop;
		}
	}
	else if (document.layers) {
		document.pagetop.top = window.innerHeight - 53 + window.pageYOffset;
	}
	else if (document.getElementById) {
		document.getElementById('pagetop').style.top = window.innerHeight - 58 + window.pageYOffset + 'px';
	   }
}

function initfloatingimage () {
	
	if (document.all) {
		document.all.pagetop.style.pixelLeft = 706; //document.body.clientWidth - document.all.pagetop.offsetWidth - 120; //760;
		if (platform == 'mac')
		{
			document.all.pagetop.style.visibility = 'hidden';
		}
		else
		{
			document.all.pagetop.style.visibility = 'visible';
		}
	}
	else if (document.layers) {
		document.pagetop.left = 706;//window.innerWidth - document.pagetop.clip.width - 25;
		document.pagetop.visibility = 'show';
	}
	else if (document.getElementById) {
		document.getElementById('pagetop').style.left = 706;// (window.innerWidth - 45) + 'px';
		document.getElementById('pagetop').style.visibility = 'visible';
	   }
	}

if (document.all)
	window.onscroll = floating;
else
	setInterval ('floating()', 60);