Specific implementation of a masking effect using js iframe to form a page_javascript skills

Before using this code, please download the jquery library

Copy the code The code is as follows:

var maskStackCount = 0;

function mask(method){

//This is the window you want to mask. What I want to mask here is an iframe window. You can also use var winObj=$(window)

var winObj=window.top.$("body").find("iframe[name='dialognormaliframe']");
if(typeof method == " undefined"){
method="open";
}
if (method == "open") {
if (maskStackCount <= 0) {
var mask = $( "

").appendTo("body");
mask.css({
width: winObj.width() "px",
height: winObj.height() "px",
filter: "alpha(opacity=60)"
}).show() ;
winObj.on("resize.mask", function(){
mask.css({
width: winObj.width() "px",
height: winObj.height() "px"
});
});
}
maskStackCount;
}
else if(method == "close"){
maskStackCount--;
$("#window-mask").remove();
winObj.off("resize.mask");
}
}