var site_window_w = 800;
var site_window_h = 437;

/*
	var album_batdau = 0;
	var album_ketthuc = 0;
	
	if ( album_batdau == 0 )
	{
		album_batdau = document.getElementById('img_id').width;
	}
		
	if ( album_ketthuc == 0 )
	{
		album_ketthuc = document.getElementById('img_id').height;
	}
*/	

if ( parseInt(navigator.appVersion) > 3 )
{
	if (navigator.appName=="Netscape")
	{
		var site_window_w = window.innerWidth;
		var site_window_h = window.innerHeight;
	}
	
	if (navigator.appName.indexOf("Microsoft")!=-1)
	{
		var site_window_w = document.body.offsetWidth;
		var site_window_h = document.body.offsetHeight;
	}
}

function lhl_resize( picn )
{
	if ( ! picn )
	{
		var picn = "resize";
	}
	
	var img_percent = document.getElementById( picn ).value;
		
	document.getElementById('img_id').width = (album_batdau / 100) * img_percent;
	document.getElementById('img_id').height = (album_ketthuc / 100) * img_percent;
}

if ( album_batdau > (site_window_w - 100) )
{
	var resize = site_window_w - 100;
	
	document.getElementById('img_id').width = resize;
	document.getElementById('img_id').height = album_ketthuc * ( resize / album_batdau );
	
	data = ( resize / album_batdau ) * 100;
	document.getElementById('resize').value = parseInt(data);
	
	lhl_resize();
}