Lock ASP.NET Page and Show Animated Image While Waiting for a Long Post-Back

/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
/* Set the cursor to busy when we are doing something */
.yui-busy {
    cursor: wait !important;
}
.yui-toolbar-container fieldset {
    padding: 0;
    margin: 0;
    border: 0;
}
.yui-toolbar-container legend {
    display: none;
}
/* Setup the container with some padding and zoom it for IE's hasLayout */
.yui-toolbar-container .yui-toolbar-subcont {
    padding: .25em 0;
    zoom: 1;
}
/* When collapsed set the toolbars container to display none */
.yui-toolbar-container-collapsed .yui-toolbar-subcont {
    display: none;
}
/* Setup the :after so that compliant browsers don't loose the bounding box */
.yui-toolbar-container .yui-toolbar-subcont:after { display: block; clear: both; visibility: hidden; content: '.'; height: 0;}

/* Drag handle for the toolbar's draggable property */
.yui-toolbar-container span.yui-toolbar-draghandle {
    cursor: move;
    border-left: 1px solid #999;
    border-right: 1px solid #999;
    overflow: hidden;
    text-indent: 77777px;
    width: 2px;
    height: 20px;
    display: block;
    clear: none;
    float: left;
    margin: 0 0 0 .2em;
}
/* If the titlebar is draggable, the set the cursor */
.yui-toolbar-container .yui-toolbar-titlebar.draggable {
    cursor: move;
}
/* Set the titlebar to relative so we can position the collapse button */
.yui-toolbar-container .yui-toolbar-titlebar {
    position: relative;
}
/* Toolbar's titlebar styles */
.yui-toolbar-container .yui-toolbar-titlebar h2 {
    font-weight: bold;
    letter-spacing: 0;
    border: none;
    color: #000;
    margin: 0;
    padding: .2em;
}
.yui-toolbar-container .yui-toolbar-titlebar h2 a {
    text-decoration: none;
    color: #000;
    cursor: default;
}
/* If the toolbar is grouped the draghandle needs to be bigger */
.yui-toolbar-container.yui-toolbar-grouped span.yui-toolbar-draghandle {
    height: 40px;
}

/* Float the groups so they position nicely and zoom them for IE */
.yui-toolbar-container .yui-toolbar-group {
    float: left;
    margin-right: .5em;
    zoom: 1;
}
/* Setup the :after so that compliant browsers don't loose the bounding box */
.yui-toolbar-container .yui-toolbar-group:after { display: block; clear: both; visibility: hidden; content: '.'; height: 0;}
/* Grouped title styles */
.yui-toolbar-container .yui-toolbar-group h3 {
    font-size: 75%;
    padding: 0 0 0 .25em;
    margin: 0;
}
/* Style the separators with a left border */
.yui-toolbar-container span.yui-toolbar-separator {
    width: 2px;
    padding: 0;
    height: 18px;
    margin: .2em 0 .2em .1em;
    display: none;
    float: left;

}
/* Set the height of a grouped separator to a little bit bigger */
.yui-toolbar-container.yui-toolbar-grouped span.yui-toolbar-separator {
    height: 45px;
    *height: 50px;
}

/* Reset the height of a separator inside of a group */
.yui-toolbar-container.yui-toolbar-grouped .yui-toolbar-group span.yui-toolbar-separator {
    height: 18px;
    display: block;
}

/* Kill the default styles of the list */
.yui-toolbar-container ul li {
    margin: 0;
    padding: 0;
    list-style-type: none;
}
/* Hide the group labels when the .yui-toolbar-nogrouplabels class is applied */
.yui-toolbar-container .yui-toolbar-nogrouplabels h3 {
    display: none;
}

/* Setup the default style of a button in the toolbar */
.yui-toolbar-container .yui-push-button,
.yui-toolbar-container .yui-color-button,
.yui-toolbar-container .yui-menu-button {
/*.yui-toolbar-container .yui-button {*/
    position: relative;
    cursor: pointer;
}

/* setup the default style of the A inside of the toolbar button */
.yui-toolbar-container .yui-button .first-child, .yui-toolbar-container .yui-button .first-child a {
    height: 100%;
    width: 100%;
    overflow: hidden;
    font-size: 0px;
}

/* Setup the disabled state of a button */
.yui-toolbar-container .yui-button-disabled {
    cursor: default;
}
/* Disable the icon too */
.yui-toolbar-container .yui-button-disabled .yui-toolbar-icon {
    opacity: .5;
    filter: alpha(opacity=50);
}
/*Disabled Spin button arrows*/
.yui-toolbar-container .yui-button-disabled .up,
.yui-toolbar-container .yui-button-disabled .down {
    opacity: .5;
    filter: alpha(opacity=50);
}
/* remove any padding from the A */
.yui-toolbar-container .yui-button a {
    overflow: hidden;
}

/* Override the default Button style for select menu*/
.yui-toolbar-container .yui-toolbar-select .first-child a {
    cursor: pointer;
}

/* Font Family Menu Style - This styles the menu items and the selected menu item */
.yui-toolbar-fontname-arial { font-family: Arial; }
.yui-toolbar-fontname-arial-black { font-family: Arial Black; }
.yui-toolbar-fontname-comic-sans-ms { font-family: Comic Sans MS; }
.yui-toolbar-fontname-courier-new { font-family: Courier New; }
.yui-toolbar-fontname-times-new-roman { font-family: Times New Roman; }
.yui-toolbar-fontname-verdana { font-family: Verdana; }
.yui-toolbar-fontname-impact { font-family: Impact; }
.yui-toolbar-fontname-lucida-console { font-family: Lucida Console; }
.yui-toolbar-fontname-tahoma { font-family: Tahoma; }
.yui-toolbar-fontname-trebuchet-ms { font-family: Trebuchet MS; }

/* Spin Button */
.yui-toolbar-container .yui-toolbar-spinbutton {
    position: relative;
}

/* Setup the default style for the A */
.yui-toolbar-container .yui-toolbar-spinbutton .first-child a {
    z-index: 0;
    opacity: 1;
}

/* Setup the position and style for the up and down arrows */
.yui-toolbar-container .yui-toolbar-spinbutton a.up, .yui-toolbar-container .yui-toolbar-spinbutton a.down {
    position: absolute;
    display: block
    right: 0;
    cursor: pointer;
    z-index: 1;
    padding: 0;
    margin: 0;
}
/* Position all panels/overlays as absolute by default */
.yui-toolbar-container .yui-overlay {
    position: absolute;
}
/* Smash the default style for lists */
.yui-toolbar-container .yui-overlay ul li {
    margin: 0;
    list-style-type: none;
}

/* Reset the z-index of the toolbar container so that menu's appear over the iframe in IE and Safari */
.yui-toolbar-container {
    z-index: 1;
}

/* The div around the iFrame */
.yui-editor-container .yui-editor-editable-container {
    position: relative;
    z-index: 0;
    width: 100%;
}
/* The disbled state of the Editor */
.yui-editor-container .yui-editor-masked {
    background-color: #CCC;
}
/* Style the editable iframe to hide it */
.yui-editor-container iframe {
    border: 0px;
    padding: 0;
    margin: 0;
    zoom: 1;
    display: block;
}
/* Reset some padding on the editable iframes container */
.yui-editor-container .yui-editor-editable {
    padding: 0;
    margin: 0;
}
/* Style the dom path box at the bottom of the editor */
.yui-editor-container .dompath {
    font-size: 85%;
}
/* Header styles for the Property Editor */
.yui-editor-panel .hd {
    text-align: left;
    position: relative;
}
/* Setup some padding around the h3 */
.yui-editor-panel .hd h3 {
    font-weight: bold;
    padding: 0.25em 0pt 0.25em 0.25em;
    margin: 0;
}

/* set it to relative so we can position the close button - Zoom it for IE */
.yui-editor-panel .bd {
    width: 100%;
    zoom: 1;
    position: relative;
}
/* Setup some padding for the body container - Zoom it for IE */
.yui-editor-panel .bd div.yui-editor-body-cont {
    padding: .25em .1em;
    zoom: 1;
}
/* Get the caret back in Geckp */
.yui-editor-panel .bd .gecko form {
    overflow: auto;
}

/* Setup the :after so that compliant browsers don't loose the bounding box */
.yui-editor-panel .bd div.yui-editor-body-cont:after { display: block; clear: both; visibility: hidden; content: '.'; height: 0;}

/* style the footer of the property editor */
.yui-editor-panel .ft {
    text-align: right;
    width: 99%;
    float: left;
    clear: both;
}

/* Style the "tip" icon */
.yui-editor-panel .ft span.tip {
    display: block;
    position: relative;
    padding: .5em .5em .5em 23px;
    text-align:left;
    zoom: 1;
}


/* setup some form fields */
.yui-editor-panel label {
    clear: both;
    float: left;
    padding: 0;
    width: 100%;
    text-align: left;
    zoom: 1;
}
/* This fixes the caret issue in Firefox */
.yui-editor-panel .gecko label {
    overflow: auto; 
}
/* more form fields */
.yui-editor-panel label strong {
    float: left;
    width: 6em;
}

/* The remove link in the Link Property Editor */
.yui-editor-panel .removeLink {
    width: 80%;
    text-align: right;
}

/* More form styling */
.yui-editor-panel label input {
    margin-left: .25em;
    float: left;
}

.yui-editor-panel .yui-toolbar-group {
    margin-bottom: 0.75em;
}

/* Image Padding in the Property Editor */
.yui-editor-panel .yui-toolbar-group-padding {
}

/* Image Border in the Property Editor */
.yui-editor-panel .yui-toolbar-group-border {
}

/* Image Text Flow in the Property Editor */
.yui-editor-panel .yui-toolbar-group-textflow {
}

/* Image Height/Width in the Property Editor */
.yui-editor-panel .height-width {
    float: left;
}
/* Image Height/Width title */
.yui-editor-panel .height-width h3 {
}
/* Image Height/Width container */
.yui-editor-panel .height-width span {
    font-style: italic;
    display: block;
    float: left;
    overflow: visible;
}
/* Image Height/Width original info container */
.yui-editor-panel .height-width span.info {
    font-size: 70%;
    margin-top: 3px;
}

/* Border Size/Type button widths */
.yui-editor-panel .yui-toolbar-bordersize, .yui-editor-panel .yui-toolbar-bordertype {
    font-size: 75%;
}

/* Kill the separators in the Property Editor */
.yui-editor-panel .yui-toolbar-container span.yui-toolbar-separator {
    border: none;
}

/* Border Type solid */
.yui-editor-panel .yui-toolbar-bordersize span a span,
.yui-editor-panel .yui-toolbar-bordertype span a span {
    display: block;
    height: 8px;
    left: 4px;
    position: absolute;
    top: 3px;
    _top: -5px;
    width: 24px;
    text-indent: 52px;
    font-size: 0%;
}
/* Border Type solid */
.yui-editor-panel .yui-toolbar-bordertype span a span.yui-toolbar-bordertype-solid {
    border-bottom: 1px solid black;
}
/* Border Type dotted */
.yui-editor-panel .yui-toolbar-bordertype span a span.yui-toolbar-bordertype-dotted {
    border-bottom: 1px dotted black;
}
/* Border Type dashed */
.yui-editor-panel .yui-toolbar-bordertype span a span.yui-toolbar-bordertype-dashed {
    border-bottom: 1px dashed black;
}
/* Border Size 0 */
.yui-editor-panel .yui-toolbar-bordersize span a span.yui-toolbar-bordersize-0 {
    *top: 0px;
    text-indent: 0px;
    font-size: 75%;
}
/* Border Size 1 */
.yui-editor-panel .yui-toolbar-bordersize span a span.yui-toolbar-bordersize-1 {
    border-bottom: 1px solid black;
}
/* Border Size 2 */
.yui-editor-panel .yui-toolbar-bordersize span a span.yui-toolbar-bordersize-2 {
    border-bottom: 2px solid black;
}
/* Border Size 3 */
.yui-editor-panel .yui-toolbar-bordersize span a span.yui-toolbar-bordersize-3 {
    top: 2px;
    *top: -5px;
    border-bottom: 3px solid black;
}
/* Border Size 4 */
.yui-editor-panel .yui-toolbar-bordersize span a span.yui-toolbar-bordersize-4 {
    top: 1px;
    *top: -5px;
    border-bottom: 4px solid black;
}
/* Border Size 5 */
.yui-editor-panel .yui-toolbar-bordersize span a span.yui-toolbar-bordersize-5 {
    top: 1px;
    *top: -5px;
    border-bottom: 5px solid black;
}

/* Border Size menu size */
.yui-toolbar-container .yui-toolbar-bordersize-menu,
.yui-toolbar-container .yui-toolbar-bordertype-menu {
    width: 95px !important;
}
/* Border Size menu styles */
.yui-toolbar-bordersize-menu .yuimenuitemlabel, .yui-toolbar-bordertype-menu .yuimenuitemlabel, 
.yui-toolbar-bordersize-menu .yuimenuitemlabel, .yui-toolbar-bordertype-menu .yuimenuitemlabel:hover {
    margin:0px 3px 7px 17px;
}
/* Border Size menu styles - Checked */
.yui-toolbar-bordersize-menu .yuimenuitemlabel .checkedindicator, .yui-toolbar-bordertype-menu .yuimenuitemlabel .checkedindicator {
    position: absolute;
    left: -12px;
    *top: 14px;
    *left: 0px;
}

/* Border Size 1 - Menu Item */
.yui-toolbar-bordersize-menu li.yui-toolbar-bordersize-1 a {
    border-bottom: 1px solid black;
    height: 14px;
}
/* Border Size 2 - Menu Item */
.yui-toolbar-bordersize-menu li.yui-toolbar-bordersize-2 a {
    border-bottom: 2px solid black;
    height: 14px;
}
/* Border Size 3 - Menu Item */
.yui-toolbar-bordersize-menu li.yui-toolbar-bordersize-3 a {
    border-bottom: 3px solid black;
    height: 14px;
}
/* Border Size 4 - Menu Item */
.yui-toolbar-bordersize-menu li.yui-toolbar-bordersize-4 a {
    border-bottom: 4px solid black;
    height: 14px;
}
/* Border Size 5 - Menu Item */
.yui-toolbar-bordersize-menu li.yui-toolbar-bordersize-5 a {
    border-bottom: 5px solid black;
    height: 14px;
}


/* Border Type Solid - Menu Item */
.yui-toolbar-bordertype-menu li.yui-toolbar-bordertype-solid a {
    border-bottom: 1px solid black;
    height: 14px;
}
/* Border Type Dashed - Menu Item */
.yui-toolbar-bordertype-menu li.yui-toolbar-bordertype-dashed a {
    border-bottom: 1px dashed black;
    height: 14px;
}
/* Border Type Dotted - Menu Item */
.yui-toolbar-bordertype-menu li.yui-toolbar-bordertype-dotted a {
    border-bottom: 1px dotted black;
    height: 14px;
}

/* Hidden Headers for Accessibility */
h2.yui-editor-skipheader, h3.yui-editor-skipheader {
    height: 0;
    margin: 0;
    padding: 0;
    border: none;
    width: 0;
    overflow: hidden;
    position: absolute;
}

/* Setup the default look of a color menu and Zoom it for IE */
.yui-toolbar-colors {
    width: 133px;
    zoom: 1;
    display: none;
    z-index: 100;
    overflow: hidden;
}

/* Setup the :after so that compliant browsers don't loose the bounding box */
.yui-toolbar-colors:after { display: block; clear: both; visibility: hidden; content: '.'; height: 0;}
/* Style all of the A's so the float properly */
.yui-toolbar-colors a {
    height: 9px;
    width: 9px;
    float: left;
    display: block;
    overflow: hidden;
    text-indent: 999px;
    margin: 0;
    cursor: pointer;
    border: 1px solid #F6F7EE;
}
/* Put a little border around one that is hovered over */
.yui-toolbar-colors a:hover {
    border: 1px solid black;
}

/* Smash the inhertited Menu style */
.yui-color-button-menu {
    overflow: visible;
    background-color: transparent;
}

/* This is the preview box at the bottom of the menu - Zoom it for IE */
.yui-toolbar-colors span {
    position: relative;
    display: block;
    padding: 3px;
    overflow: hidden;
    float: left;
    width: 100%;
    zoom: 1;
}
/* Setup the :after so that compliant browsers don't loose the bounding box */
.yui-toolbar-colors span:after { display: block; clear: both; visibility: hidden; content: '.'; height: 0;}

/* This is the box with the color preview in it */
.yui-toolbar-colors span em {
    height: 35px;
    width: 30px;
    float: left;
    display: block;
    overflow: hidden;
    text-indent: 999px;
    margin: 0.75px;
    border: 1px solid black;
}

/* The container for the name and hex code */
.yui-toolbar-colors span strong {
    font-weight: normal;
    padding-left: 3px;
    display: block;
    font-size: 85%;
    float: left;
    width: 65%;
}


.yui-toolbar-group-undoredo h3,
.yui-toolbar-group-insertitem h3,
.yui-toolbar-group-indentlist h3 {
    width: 68px;
}
.yui-toolbar-group-indentlist2 h3 {
    width: 122px;
}
.yui-toolbar-group-alignment h3 {
    width: 130px;
}