function showDlg()
{
	//禁用select
	hideOrShowSelect(true);
	//显示对话框
	var w=368;
	var h=129;
	var dde=document.documentElement;
	var obox=document.getElementById('divBox');
	obox.style.left=dde.scrollLeft+(dde.offsetWidth-w)/2 +"px";
	obox.style.top=dde.scrollTop+(dde.offsetHeight-h)/2.5 +"px";
	document.getElementById('divBox').className='showDlg';
	//显示对话框end
}
function cancel()
{
	document.getElementById('divBox').className='hideDlg';
	hideOrShowSelect(false);
}
function hideOrShowSelect(v)
{
	var allselect = document.getElementsByTagName("select");
	for (var i=0; i<allselect.length; i++)
	{
		allselect[i].disabled =(v==true)?"disabled":"";
	}
}