jQuery Model Dialog|jQuery弹出层|javascript弹出层

var Dialog = Dialog || {};
Dialog.showModel = function (width, height, text){
	var wdw = $(window).width();
	var wdh = $(window).height();
	var left = Math.ceil((wdw - width)/2);
	var top = Math.ceil((wdh-height)/2)-Math.floor(height/3);
	var html = '<div id="dialog-model-mask" style="width:'+ wdw +'px;height:'+ wdh +'px;background:#000000;position:fixed;z-index:999;left:0px;top:0px;opacity:0.3;filter:alpha(opacity=30);"></div>';
	html += '<div id="dialog-model-show" style="width:'+ width +'px;height:'+ height +'px;margin:0px;padding:0px;border:8px solid #555555;border-radius:5px;position:fixed;z-index:998;left:'+ left +'px;top:'+ top +'px;opacity:0.6;filter:alpha(opacity=60);"></div>';
	html += '<div id="dialog-model-text" style="width:'+ width +'px;height:'+ height +'px;margin:0px;padding:0px;background:#ffffff;position:fixed;z-index:1000;left:'+ (left + 8) +'px;top:'+ (top + 8) +'px;">'+ text +'</div>';
	$(document.body).append(html);
}
Dialog.hideModel = function (){
	$("div#dialog-model-mask").hide();
	$("div#dialog-model-show").hide();
	$("div#dialog-model-text").hide();	
}