php代码关于变量转义的问题

$('a.video', toolbar).click(function() {			_this.save_bookmark();			_this.hide_menu();			$(this).xn_menu($('.video', menu), 0, 5000);			setTimeout(function() {				$('.video input.url', menu).focus().select();			}, 100);		});		$('.video input.insert', menu).click(function() {			var url = $('.video input.url', menu).val();			var width = $('.video input.w', menu).val();			var height = $('.video input.h', menu).val();			_this.add_video(url, width, height);			return true;		});		$('.video input.close', menu).click(function() {			_this.hide_menu();			_this.load_bookmark(true);			return true;		});

this.add_video = function(url, width, height) {		width = intval(width);		height = intval(height);		var s = "<br><br><center><script type=\"text/javascript\" src=\"jwplayer/jwplayer.js\"></script><div id=\"mediaplayer\"></div> <script type=\"text/javascript\">jwplayer('mediaplayer').setup({'flashplayer': 'jwplayer/jwplayer.flash.swf','image': 'http://7vzuer.com1.z0.glb.clouddn.com/t013d040a81b623566f.jpg', 'id': 'playerID', 'width': '100%', 'aspectratio':'10:6', 'title':'"+height+"', 'tracks':'"+width+"', 'file': '"+url+"' });</script><br><br></center>";		_this.paste(s);				$('div.video', _this.menu).hide();	};