- See more at: http://hungred.com/how-to/tutorial-simple-screen-grey-effect-jquery/#sthash.Dtw0Gzc7.dpuf
#box
2 {
3 width: 150px;
4 height: 150px;
5 background: #FFF;
6 border: red dotted 5px;
7 text-align: center;
8 position: absolute;
9 margin-left: -75px;
10 margin-top: -75px;
11 left: 50%;
12 top: 50%;
13 z-index: 20;
14 display: none;
15 }
16
17 #screen
18 {
19 position: absolute;
20 left: 0;
21 top: 0;
22 background: #000;
23 }
$(function(){
var pop = function(){
$('#screen').css({ "display": "block", opacity: 0.7, "width":$(document).width(),"height":$(document).height()});
$('#box').css({"display": "block"}).click(function(){$(this).css("display", "none");$('#screen').css("display", "none")});
}
$('#button').click(pop);
$(window).resize(function(){
$('#box').css("display") == 'block'?pop.call($('#button')):"";
});
});
- See more at: http://hungred.com/how-to/tutorial-simple-screen-grey-effect-jquery/#sthash.Dtw0Gzc7.dpuf
function grayOut(vis, options, extra) {
// Pass true to gray out screen, false to ungray
// options are optional. This is a JSON object with the following (optional) properties
// opacity:0-100 // Lower number = less grayout higher = more of a blackout
// zindex: # // HTML elements with a higher zindex appear on top of the gray out
// bgcolor: (#xxxxxx) // Standard RGB Hex color code
// grayOut(true, {'zindex':'50', 'bgcolor':'#0000FF', 'opacity':'70'});
// Because options is JSON opacity/zindex/bgcolor are all optional and can appear
// in any order. Pass only the properties you need to set.
var options = options || {};
var zindex = options.zindex || 50;
var opacity = options.opacity || 70;
var opaque = (opacity / 100);
var bgcolor = options.bgcolor || '#000000';
var dark=document.getElementById('darkenScreenObject');
if (!dark) {
// The dark layer doesn't exist, it's never been created. So we'll
// create it here and apply some basic styles.
// If you are getting errors in IE see: http://support.microsoft.com/default.aspx/kb/927917
var tbody = document.getElementsByTagName("body")[0];
var tnode = document.createElement('div'); // Create the layer.
tnode.style.position='absolute'; // Position absolutely
tnode.style.top='0px'; // In the top
tnode.style.left='0px'; // Left corner of the page
tnode.style.overflow='hidden'; // Try to avoid making scroll bars
tnode.style.display='none'; // Start out Hidden
tnode.id='darkenScreenObject'; // Name it so we can find it later
var msgnode = document.createElement('div'); // Create the box layer.
msgnode.style.position='fixed'; // Position fixed
msgnode.style.display='none'; // Start out Hidden
msgnode.id='box'; // Name it so we can find it later
// give it a size and align it to center
msgnode.style.width = "300px";
msgnode.style.height = "300px";
msgnode.style.marginLeft= "-150px";
msgnode.style.marginTop= "-150px";
msgnode.style.textAlign = 'center';
msgnode.style.top= "50%"; // In the top
msgnode.style.left="50%"; // Left corner of the page
tbody.appendChild(msgnode); // Add it to the grey screen
tbody.appendChild(tnode); // Add it to the web page
dark=document.getElementById('darkenScreenObject'); // Get the object.
}
if (vis) {
// Calculate the page width and height
if( document.body && ( document.body.scrollWidth || document.body.scrollHeight ) ) {
var pageWidth = document.body.scrollWidth+'px';
var pageHeight = document.body.scrollHeight+'px';
} else if( document.body.offsetWidth ) {
var pageWidth = document.body.offsetWidth+'px';
var pageHeight = document.body.offsetHeight+'px';
} else {
var pageWidth='100%';
var pageHeight='100%';
}
//set the shader to cover the entire page and make it visible.
dark.style.opacity=opaque;
dark.style.MozOpacity=opaque;
dark.style.filter='alpha(opacity='+opacity+')';
dark.style.zIndex=zindex;
dark.style.backgroundColor=bgcolor;
dark.style.width= pageWidth;
dark.style.height= pageHeight;
dark.style.display='block';
if(extra == 'Y')
document.body.style.overflow = 'hidden';
document.getElementById("box").style.zIndex = zindex+10;
document.getElementById("box").style.border = "#000 solid 1px";
document.getElementById("box").style.display = "block";
document.getElementById("box").onclick = function() //attach a event handler to hide both div
{
dark.style.display="none";
document.getElementById("box").style.display = "none";
document.body.style.overflow = 'auto';
}
document.getElementById("box").style.backgroundColor="#FFF";
document.getElementById("box").innerHTML = "This is a box. Click me to exit effect.";
} else {
dark.style.display='none';
}
}