var ua = navigator.userAgent.toLowerCase();
var isOpera = (ua.indexOf('opera')  > -1);
var isIE = (!isOpera && ua.indexOf('msie') > -1);

function getDocumentHeight() {
	return Math.max(document.compatMode != 'CSS1Compat' ? document.body.scrollHeight : document.documentElement.scrollHeight, getViewportHeight());
}

function getViewportHeight() {
	return ((document.compatMode || isIE) && !isOpera) ? (document.compatMode == 'CSS1Compat') ? document.documentElement.clientHeight : document.body.clientHeight : (document.parentWindow || document.defaultView).innerHeight;
}

$(document).ready(function(){
	var sss = $("#body-col2").height();
	if($.browser.safari) {
		$('#body-col1-top').css('height', sss+63);
		$('#body-col1-top').css('background','url(/templates/Prest/img/left-up.png) repeat-y');
	} else {
		document.getElementById('body-col1-top').style.height = getDocumentHeight()+'px';
	}
	
	$(document).pngFix(); 
	 
	$("#top-menu-ul li").hover(function(){
		var unmenu = $(this).find(".top-unmenu");
		unmenu.css('display', 'block')
	}, function(){
		var unmenu = $(this).find(".top-unmenu");
		unmenu.css('display', 'none')
	})
})