function open_window(url,bg){
	var doc=document.documentElement||document.body;
	var h=$(document).height();
	var w=$(document).width();
	var bg_div=$('<div style="position:absolute; left:-50px; top:-50px; background-image:url(/b2btour/images/bj.png); margin:0px;z-index:100;"></div>');
	bg_div.css('opacity','0.5');
	bg_div.height(h+50);
	bg_div.width(w+50);
	$(document.body).prepend(bg_div);
	
	var new_div=$('<div style=" position:absolute;z-index:101;padding:1px;"></div>');
	$(document.body).prepend(new_div);
	new_div.css({'max-height':'580px','overflow':'auto'});
	var init_top=0;
	var _scroll=function(){
		var doc=document.documentElement||document.body;
		var h=doc.scrollTop||window.pageYOffset;
		var top=(parseInt(h)+parseInt(init_top))+'px';
		new_div.css('top',top);
	}
	if(url.indexOf('?')!=-1){
		url+='&time='+(new Date().getTime());
	}
	else
	{
		url+='?time='+(new Date().getTime());
	}
	new_div.load(url,function(){
		init_travel();
		var cw=document.documentElement.clientWidth||document.body.clientWidth;
		var ch=document.documentElement.clientHeight||document.body.clientHeight;
		var sh=doc.scrollTop||window.pageYOffset;
		var wth=new_div.width();
		var hth=new_div.height();
		var l=parseInt((cw-wth)/2)+'px';
		var t=(parseInt((ch-hth)/2)+sh)+'px';
		new_div.css({'left':l,'top':t});
		if(new_div.height()>580){
			new_div.height(580);
		}
		init_top=parseInt((ch-hth)/2);
		$(window).scroll(_scroll);
		$(window).resize(function(){
			bg_div.remove();
			new_div.remove();
		});
		new_div.append($('<div style="position:absolute;z-index:101;top:20px;right:54px;"><a href="#" id="colse_win">关　闭</a></div>'));
		$('#colse_win',new_div).click(function(){
			bg_div.remove();
			new_div.remove();
			return false;
		});
	});
	return false;
}

function publish_line(){
	return window.confirm("发布后该线路就可以被购买和预定了，请确认线路信息准确无误，是否确认无误发布？");
}