本屌丝最近工作要求重写网站所有代码，so...极其蛋疼的事情出现了，管我的人要求不能用网上的插件，oh~~~my god!! 这是多么能让千万只草原上的马儿奔腾的要求~~~
先实现一个比较简单的功能：
需求：网页遮罩层/弹出层，兼容IE6
幸好本屌丝以前聪明收集了个js的版本，so，自己改写成了jQuery插件形式的，方便以后使用。
屁话不多放，无码无真相！
/*******************************
* @name Layer跨浏览器兼容插件 v1.0
*******************************/
;(function($){
$.fn.layer = function(){
var isIE = (document.all) ? true : false;
var isIE6 = isIE && !window.XMLHttpRequest;
var position = !isIE6 ? "fixed" : "absolute";
var containerBox = jQuery(this);
containerBox.css({"z-index":"9999","display":"block","position":position ,"top":"50%","left":"50%","margin-top": -(containerBox.height()/2)+ "px","margin-left": -(containerBox.width()/2) + "px"});
var layer=jQuery("
");
layer.css({"width":"100%","height":"100%","position":position,"top":"0px","left":"0px","background-color":"#000","z-index":"9998","opacity":"0.6"});
jQuery("body").append(layer);
function layer_iestyle(){
var maxWidth = Math.max(document.documentElement.scrollWidth, document.documentElement.clientWidth) + "px";
var maxHeight = Math.max(document.documentElement.scrollHeight, document.documentElement.clientHeight) + "px";
layer.css({"width" : maxWidth , "height" : maxHeight });
}
function containerBox_iestyle(){
var marginTop = jQuery(document).scrollTop - containerBox.height()/ 2 + "px";
var marginLeft = jQuery(document).scrollLeft - containerBox.width()/ 2 + "px";
containerBox.css({"margin-top" : marginTop , "margin-left" : marginLeft });
}
if(isIE){
layer.css("filter","alpha(opacity=60)");
}
if(isIE6){
layer_iestyle();
containerBox_iestyle();
}
jQuery("window").resize(function(){
layer_iestyle();
});
layer.click(function(){
containerBox.hide();
jQuery(this).remove();
});
};
})(jQuery);
