// drop down menu

var timeout    = 500;
var closetimer = 0;
var ddmenuitem = 0;

function ddm_open()
{
	ddm_canceltimer();
	ddm_close();
	ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');
}

function ddm_close()
{
	if (ddmenuitem) ddmenuitem.css('visibility', 'hidden');
}

function ddm_timer()
{
	closetimer = window.setTimeout(ddm_close, timeout);
}

function ddm_canceltimer()
{
	if (closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

$(document).ready(function()
{
	$('#gnavi > li').bind('mouseover', ddm_open);
	$('#gnavi > li').bind('mouseout',  ddm_timer);
});

document.onclick = ddm_close;


function ddm_check_width()
{
	if ( $.jqem.current() != $.jqem.previous() ) {
		ddm_width();
	}
}

function ddm_width()
{
	var arr = $('#gnavi>li');
	var n = arr.length;
	for ( i=0; i<n; i++ )
	{
		var o = $("ul",arr[i]);
		var w = $(arr[i]).width();
		(o.width()<w) ? o.css('width',w) : o.css('width','auto');
	}		
}

if (jQuery.browser.msie && parseInt(jQuery.browser.version) == 6) {
	$.jqem.bind(ddm_check_width);
	$(ddm_width);
}