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JavaScript - Opacity Not Working: Ie8 Vs Ie7: Seem To Care About Position Style
I have found that in IE8 I cannot give an element the alpha filter (opacity) if it has the position style set to something (relative or absolute). An element without the position style (it is the empty string) can have opacity in IE8.
I have found that in IE7 I can only give an element the alpha filter if the position style is set to something (relative or absolute). An element without a position style will not take the alpha filter. This is a major conundrum. Does anyone have any insight into this bug? Given the above, I can only achieve opacity in one of the two browsers. I have both IE8 and IE7 running in standards mode. The opacity is being set programmatically with JS like so: obj.style.filter = "alpha(opacity="+opacity+")"; where opacity is an integer between 0 and 100. Obviously I don't have any problem with any other browser doing opacity because it is different styles for them and they don't care about the position style at all. Similar TutorialsHi Guys, Been stuck on this for too long now. I'm trying to write a function that rotates images with a fade. The function work properly, however I can't make the images fade back in. The fadein function won't add to the .style.opacity Here's the code with the php Code: function fadeout()
{
b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity = (b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity - 0.01);
if(b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity == 0.1)
{
clearInterval(fadeouttimer);
b<?php echo ($AF_list_artist_id->artist_id); ?>.src = a<?php echo ($AF_list_artist_id->artist_id); ?>[starter<?php echo ($AF_list_artist_id->artist_id); ?>];
function fadein()
{
b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity = (b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity + 0.01);
//alert(b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity);
if(b<?php echo ($AF_list_artist_id->artist_id); ?>.style.opacity == 1)
{
clearInterval(fadeintimer);
setTimeout("rotate<?php echo ($AF_list_artist_id->artist_id); ?>("+(starter<?php echo ($AF_list_artist_id->artist_id); ?>+1)+")",6000);
}
}
var fadeintimer = setInterval(fadein,10);
}
}
var fadeouttimer = setInterval(fadeout,10);
and without Code: function fadeout()
{
b7.style.opacity = (b7.style.opacity - 0.01);
if(b7.style.opacity == 0.1)
{
clearInterval(fadeouttimer);
b7.src = a7[starter7];
function fadein()
{
b7.style.opacity = (b7.style.opacity + 0.01);
//alert(b7.style.opacity);
if(b7.style.opacity == 1)
{
clearInterval(fadeintimer);
setTimeout("rotate7("+(starter7+1)+")",6000);
}
}
var fadeintimer = setInterval(fadein,10);
}
}
var fadeouttimer = setInterval(fadeout,10);
Hi, on my site, I have added Style 1 and Style 2 in my menu at the top right http://www.thisisworthing.com/default.php# when I click on Theme 2, it doesn't work?! please help! I have this working on my other site: http://www.mypubspace.com what am i doing wrong?! hi all, i have some code that is not registering. thinking i'm missing something obvious, but i sure can't see it. can someone else's eyes peruse this for me? thanks! code for the combo box: PHP Code: select name="country" size="1" id="country" style="position:absolute; left:451px; top:260px; width:176px; color:#00008B; font-family:Arial; font-weight:bold; font-size:13px; z-index:13" onChange="PhoneMask();"> <option value="1">United States</option> <option value="2">Australia</option> <option value="3">China</option> <option value="4">Mexico</option> <option value="5">United Kingdom</option> </select> code for the different labels i want to display: PHP Code: /*THIS SECTION IS FOR THE DIFFERENT PHONE NUMBERS OF THE VARIOUS COUNTRY CHOICES*/ <div id="phoneLabelUS" style="position:absolute; left:10px; top:225px; width:207px; height:15px;" align="left"> <font style="font-size:12px" color="#FF0000" face="Arial"><b> *Telephone Number </b></font><font style="font-size:12px" face="Arial"><b><span class="style9">(xxx-xxx-xxxx)</span> </b></font></div> <div id="phoneLabelAU" style="position:absolute; left:10px; top:225px; width:207px; height:15px; visibility: hidden;" align="left"><font style="font-size:12px" color="#FF0000" face="Arial"><b>*Telephone Number </b></font><font style="font-size:12px" face="Arial"><b><span class="style9"> (xx-xxxx-xxxx)</span></b></font></div> <div id="phoneLabelOTHER" style="position:absolute; left:10px; top:225px; width:207px; height:15px; visibility: hidden;" align="left"> <font style="font-size:12px" color="#FF0000" face="Arial"><b> Telephone Number</b></font></div> /*------------------------------------------------------------------------------------*/ here is my PhoneMask() function: PHP Code: function PhoneMask() { if (document.getElementById("country").value == "1") { document.getElementById("phoneLabelOTHER").style.zIndex = 50; document.getElementById("phoneLabelOTHER").style.visibility = 'hidden'; document.getElementById("phoneLabelAU").style.zIndex = 50; document.getElementById("phoneLabelAU").style.visibility = 'hidden'; document.getElementById("phoneLabelUS").style.zIndex = 51; document.getElementById("phoneLabelUS").style.visibility = 'visible'; } elseif (document.getElementById("country").value == "2") { document.getElementById("phoneLabelOTHER").style.zIndex = 50; document.getElementById("phoneLabelOTHER").style.visibility = 'hidden'; document.getElementById("phoneLabelAU").style.zIndex = 51; document.getElementById("phoneLabelAU").style.visibility = 'visible'; document.getElementById("phoneLabelUS").style.zIndex = 50; document.getElementById("phoneLabelUS").style.visibility = 'hidden'; } else { document.getElementById("phoneLabelOTHER").style.zIndex = 51; document.getElementById("phoneLabelOTHER").style.visibility = 'visible'; document.getElementById("phoneLabelAU").style.zIndex = 50; document.getElementById("phoneLabelAU").style.visibility = 'hidden'; document.getElementById("phoneLabelUS").style.zIndex = 50; document.getElementById("phoneLabelUS").style.visibility = 'hidden'; } } This is killing me guys... I want to take the current location of an position:absolute div and add 100 to its style.top value. However I can't get that value, I can set it but not retrieve its current value. Here is a sample.... Code: function moveit(elem){ alert(elem.style.top); alert(document.getElementById("question1").style.top); } Demo: http://campo.cc/stage.htm Please help!!! Jutboy it works great in chrome and strangely enough internet explorer 8 but doesn't work in firefox Code: // Detect if the browser is IE or not.
// If it is not IE, we assume that the browser is NS.
var IE = document.all?true:false;
// If NS -- that is, !IE -- then set up for mouse capture
if (!IE) document.captureEvents(Event.MOUSEMOVE)
// Set-up to use getMouseXY function onMouseMove
document.onmousemove = DRAG;
// Temporary variables to hold mouse x-y pos.s
// Main function to retrieve mouse x-y pos.s
var tempX = 0;
var tempY = 0;
function DRAG(e)
{
if (!IE)
{ // grab the x-y pos.s if browser is NS
tempX = e.pageX;
tempY = e.pageY;
}
else
{ // grab the x-y pos.s if browser is IE
tempX = event.clientX + document.body.scrollLeft
tempY = event.clientY + document.body.scrollTop
}
// catch possible negative values in NS4
if (tempX < 0){ tempX = 0; }
if (tempY < 0){ tempY = 0; }
// show the position values in the form named Show
// in the text fields named MouseX and MouseY
var w = getW();
var h = getH();
if(tempX > (w-32)){tempX = w-32;}
if(tempY > (h - 32)){tempY = h-32; }
var newX = tempX-id.offsetWidth;
var newY = tempY-header.offsetHeight-id.offsetHeight;
if(newX < 0){newX = 0; }
if(newY < 0){newY = 0; }
document.getElementById('myx').innerHTML = newX;
document.getElementById('myy').innerHTML = newY;
id.style.left = newX+"px";
id.style.top = newY+"px";
Here is my code... Code: <html>
<head>
<script type="text/javascript">
function nameofmonth(month)
{
var monthname=new Array("January","February","March","April","May","June","July","August","September","October","November","December")
return monthname[month]
}
function monthdays(month,year)
{
var daysofmonth=new Array(31,28,31,31,30,31,31,31,30,31,30,31)
if(year%4==0)
daysofmonth[1]=29
return daysofmonth[month]
}
function close(){
document.getElementById("container").style.display='none'
}
function table()
{
var now=new Date()
var hour=now.getHours()
var minute=now.getMinutes()
var second=now.getSeconds()
var date=now.getDate()
var month=now.getMonth()
var year=now.getFullYear()
now.setFullYear(year,month,1)
var firstday=now.getDay()
var monthname=nameofmonth(month)
var daysofmonth=monthdays(month,year)
if(firstday>0)
var k=-(firstday-1)
else
k=1
var table="<table border=5 cellspacing=3cellpadding=8>"
table +="<tr><th colspan=7>"+monthname + date+"th</th> <td style='cursor:pointer' onclick='close()'>[close]</td></tr>"
table +="<tr><th>sun</th><th>mon</th><th>tue</><th>wed</th><th>thu</th><th>fri</><th>sat</th></tr>"
for(var i=0;i<5;i++)
{
table+="<tr>"
for(var j=0;j<7;j++)
{
if(k<=daysofmonth && k>0)
{ if(k==date)
table+='<td id="clock" bgcolor="aqua">'+k+'</td>'
else
table+='<td style="cursor:pointer">'+k+'</td>'
k=parseInt(k)
}
else
table+="<td></td>"
k++
}
table+="</tr>"
document.getElementById("calender").innerHTML=table
}
}
</script>
</head>
<body>
<input type="text" onclick="table()"/>
<table id="container"><tr><td id="calender"></td></tr></table>
</body>
</html>
HERE is a close cell in table.when it is clicked,the close() function will called and the calender will disappear.but it is not happening.please help me ,what is wrong.Thanks in advance... // JavaScript Document function open_tab(el){ if(document.getElementById(el).style.display == "none"){ document.getElementById(el).style.display = "block"; } } function close_tab(el){ if(document.getElementById(el).style.display == "block"){ document.getElementById(el).style.display = "none"; } } Pretty basic code, works great in FireFox and Chrome in both HTML and ASPX pages. However in IE it only works properly in the .aspx pages. There are a series of links so when you click it hides the div's which are set to display:"block", except for one "div" which won't change to display"none" and I don't know why. I'm new to javascript and am not sure why this works in firefox and not chrome. I am trying to create a script that keeps an object fixed horizontally while bing positioned absolute vertically. if I replace the toPP variable in document.getElementById('fire').style.top = toPP; with say '50px' it will move the element down 50 pxs, but how I have it currently it doesn't do anything in chrome Code: <script type="text/javascript" >
window.onscroll = function()
{
if( window.XMLHttpRequest ) {
var x = 0 -document.documentElement.scrollTop;
var toP = String(x);
var toPP = toP + "px";
document.getElementById('fire').style.position = 'fixed';
document.getElementById('fire').style.top = toPP;
}
}
</script>
I need to convert a position:fixed element to position:absolute when the user resize their browser window below 1000px. Right now it does nothing. The element always keeps the fixed positioning even after resizing the window. Here's what I have right now: Code: <!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<base href="http://www.area51entertainment.co/" />
<title>Emoto <?php echo "$section"; ?></title>
<meta charset="UTF-8" />
<meta name="verify-v1" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<meta name="author" content="Andrew McCarrick" />
<meta name="robots" content="index, follow" />
<style type="text/css">
body,html {
background: #FFFFFF; /* Old browsers */
color: #000000;
font-family: Verdana;
margin-right:auto;
margin-left:auto;
max-width:1000px;
padding: 0px;
margin-top: 0px;
margin-bottom: 0px;
}
</style>
<link rel="stylesheet" href="emoto/style.css" media="screen" />
<link rel="shortcut icon" type="image/x-icon" href="/favicon.ico" />
<link rel="apple-touch-icon" href="http://www.area51entertainment.co/TouchIcon.png" />
<link rel="apple-touch-icon-precomposed" href="http://www.area51entertainment.co/TouchIcon.png" />
<link rel="image_src" href="./logo.png" />
<script language="javascript" src="emoto/float.js"></script>
</head>
<body>
<div class="wrapper">
<div id="header_float">
<div class="header_wrapper">
<div class="logo">
Picture
</div>
<div class="links">
Home | Settings | Notifications | Requests | Messages | Search Bar
</div>
<div class="links_right">
Profile Link/Sign-Out
</div>
</div>
</div>
<div class="content_wrapper">
Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2
Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2
Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2
Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 T
est2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2Test2Test2 Test2
</div>
</div>
</body>
</html>
style.css Code: a:link {color: #FFFFFF; text-decoration: none;}
a:visited {color: #FFFFFF; text-decoration: none;}
a:active {color: #FFFFFF; text-decoration: none;}
a:hover {color: #3399FF; text-decoration: none;}
.wrapper{
min-height: 2000px;
min-width: 1000px;
}
#header_float{
width: 100%;
min-width: 1000px;
height: 35px;
left:0;
right:0;
top:0;
position: fixed;
background: #49963A;
z-index: 1000;
}
.header_wrapper{
width: 1000px;
height: 35px;
margin-right:auto;
margin-left:auto;
padding: 0px;
margin-top: 0px;
margin-bottom: 0px;
color: #FFFFFF;
}
.logo{
float: left;
width: 150px;
height: 25px;
font-size: 26px;
position: relative;
top: -1px;
left: 8px;
}
.links{
float: left;
width: 670px;
height: 25px;
position: relative;
top: 7px;
}
.links_right{
float: right;
width: 180px;
height: 25px;
position: relative;
top: 7px;
}
.content_wrapper{
position: relative;
top: 35px;
width: 995px;
min-height: 450px;
}
img{
border: 0px;
}
float.js Code: if (screen.availWidth<=999)
document.getElementById('header_float').style.position = 'absolute';
else
document.getElementById('header_float').style.position = 'fixed';
if I have an html page that uses the <style> or a <link> to call a style sheet these properties aren't available to JavaScript is there a good way to access them? eg Code: <html>
<head>
<title>expandable text area</title>
<style type="text/css">
#expandable{
height: 100px;
}
</style>
</head>
<body>
<form>
<textarea id="expandable" cols="30" rows="10"></textarea>
</form>
</body>
<script type="text/javascript">
document.getElementById('expandable').addEventListener('click',function(){
if(!this.style.height){
this.style.height = this.scrollHeight+'px';
}
alert(this.style.height);
}, true);
</script>
</html>
In this example I have the height set but I cannot access it since it is not declared in the style attribute of the html element Hello. I know I get set opacity for IE using the CSS Code: filter:alpha(opacity=50); and I set it with JS as Code: theObj.style.filter = "alpha(opacity=" + (opac * 100) + ")"; but how can I read it's initial value (and store it in a variable)? Andy. Added: I should mention I use this function to get the current style: Code: var GetStyle = function (el, strRule) { // e.g. "font-size" - robertnyman.com
var elem = (typeof el === 'string') ? document.getElementById(el) : el;
if (document.defaultView && document.defaultView.getComputedStyle ) {
return document.defaultView.getComputedStyle(elem, '').getPropertyValue(strRule);
}
else if ( elem.currentStyle ) {
strRule = strRule.replace(/\-(\w)/g, function (strMatch, p1) {
return p1.toUpperCase();
});
return elem.currentStyle[strRule];
}
else
return '';
}
; Hey all, I am very new to javascript. I have been using this stacks menu I am sure you may have seen elsewhe http://net.tutsplus.com/tutorials/ja...ck-navigation/ I have modified it a bit though as I will want to use my own graphics and change a little bit how it works. I managed to make it so that the images become transparent when the stack is put back in place and then non transparent when they come back out. The problem I have is that I need the images to be transparent initially when they are in the stack. You can see the problem he http://bit.ly/cdelJu Here is the javascript for this: Code: $(function () {
// Stack initialize
var openspeed = 300;
var closespeed = 300;
$('.stack2>img').toggle(function(){
var vertical = 0;
var horizontal = 90;
var $el=$(this);
$el.next().children().each(function(){
$(this).animate({top: vertical + 'px', left: horizontal + 'px', opacity: '10'}, openspeed);
vertical = vertical + 40;
horizontal = (horizontal+.75)*1.15;
});
$el.next().animate({top: '40px', left: '10px'}, openspeed).addClass('openStack')
.find('li a>img').animate({width: '50px', marginLeft: '9px'}, openspeed);
$el.animate({paddingBottom: '0'});
}, function(){
//reverse above
var $el=$(this);
$el.next().removeClass('openStack').children('li').animate({top: '-33px', left: '-10px', opacity: '0'}, closespeed);
$el.next().find('li a>img').animate({width: '79px', marginLeft: '0'}, closespeed);
$el.animate({paddingBottom: '35px'});
});
// Stacks additional animation
$('.stack2 li a').hover(function(){
$("img",this).animate({width: '56px'}, 100);
$("span",this).animate({marginRight: '30px'});
},function(){
$("img",this).animate({width: '50px'}, 100);
$("span",this).animate({marginRight: '0'});
});
});
and here is the css: Code: /* ================ STACK #2 ================ */
.stack2 { position: fixed; top: 28px; left: 90px;}
.stack2 > img { position: relative; cursor: pointer; padding-bottom: 35px; z-index: 2; }
.stack2 ul { list-style: none; position: absolute; top: 7px; cursor: pointer; z-index: 1; }
.stack2 ul li { position: absolute; }
.stack2 ul li img { border: 0; }
.stack2 ul li span { display: none; }
.stack2 .openStack li span {
font-family: "Lucida Grande", Lucida, Verdana, sans-serif;
display:block;
height: 14px;
position:absolute;
top: 17px;
right:60px;
line-height: 14px;
border: 0;
background-color:#000;
padding: 3px 10px;
border-radius: 10px;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
color: #fcfcfc;
text-align: center;
text-shadow: #000 1px 1px 1px;
opacity: .85;
filter: alpha(opacity = 85);
}
#dock { top: 0; left: 100px; }
a.dock-item { position: relative; float: left; margin-right: 10px; }
.dock-item span { display: block; }
.stack { top: 0; }
.stack ul li { position: relative; }
/* IE Fixes */
.stack2 { _position: absolute; }
.stack2 ul { _z-index:-1; _top:-15px; }
.stack2 ul li { *right:5px; }
annd the html: Code: <div class="stack2"> <img src="images/stacks/stack-down.png" alt="stack"/> <ul id="stack2"> <li><a href=""><span>Aperture</span><img src="images/stacks/aperture.png" alt="Aperature" /></a></li> <li><a href="#"><span>All Examples</span><img src="images/stacks/photoshop.png" alt="Photoshop" /></a></li> <li><a href="example3.html"><span>Example 3</span><img src="images/stacks/safari.png" alt="Safari" /></a></li> <li><a href="example2.html"><span>Example 2</span><img src="images/stacks/coda.png" alt="Coda" /></a></li> <li><a href="index.html"><span>Example 1</span><img src="images/stacks/finder.png" alt="Finder" /></a></li> </ul> </div> Any help is greatly appreciated! Hey all, I found this code but don't fully understand it. Can anyone take a brief moment to explain what is occuring in the clearMenu, setOpacity and fadeMenu functions: Code: // configuration variables
var timeout = 250; // milliseconds
var fadeSpeed = 500; // milliseconds
var useFade = true;
// timers array
var timers = new Array();
// state array -- by id, value = active, false = inactive
var state = new Array();
// lastOpacity: used to prevent multiple timers from making the fade flicker
var lastOpacity = new Array();
// MSIE has its own way of setting opacity, so we have to detect it
// all the other major browsers support the standard DOM opacity property
var msie = false;
if( navigator.appName == "Microsoft Internet Explorer" ) msie = true;
// entry point: set element to visible and clear its timers
function setMenu( id )
{
var e = document.getElementById(id); //When the user rolls over one of horizontal menu items, the setMenu method is called and we pass in as an argument, the id of the associated ul element, which we then set its visibility attribute to visible.
e.style.visibility = "visible";
state[id] = true;
setOpacity( id, 1 );
if(timers[id]) {
clearTimeout(timers[id]);
timers[id] = undefined;
}
}
// set element to hidden and reset its opacity
// typically called by a timer
// may be used as an entry point to bypass timers and fades
function hideMenu( id )
{
var e = document.getElementById(id);
state[id] = false;
e.style.visibility = "hidden";
if(useFade) setOpacity( id, 1 );
}
// entry point: hide the menu using fade (if enabled)
function clearMenu( id )
{
if(useFade) timers[id] = setTimeout( 'fadeMenu( "' + id + '" )', timeout );
else timers[id] = setTimeout( 'hideMenu( "' + id + '" )', timeout );
}
// set the opacity
// special support for MSIE
function setOpacity( id, value )
{
var e = document.getElementById(id);
if(state[id]) value = 1; // menu fade was interrupted
else if(lastOpacity[id] && (lastOpacity[id] < value)) value = lastOpacity[id]; // prevents flicker if multiple timers set
if(msie) e.style.filter = 'alpha(opacity=' + value * 100 + ')'; // MS Internet Explorer
else e.style.opacity = (value); // Everyone else (standard DOM)
if( value == 0 ) hideMenu( id ); // when all faded, reset the menu state
lastOpacity[id] = value;
}
// fade a menu
// typically called by a timer
function fadeMenu ( id )
{
var start = 0;
var end = 0;
var s = Math.round( fadeSpeed / 25 ); // fade in 25ms increments
var timer = 0;
var i;
state[id] = false;
for( i = s; i >= 0 ; i-- ) {
setTimeout( "setOpacity('" + id + "'," + ( i / s ) + ")", timer++ * fadeSpeed / s )
}
}
Thanks for any response. Hello! I'm just starting to learn JavaScript, so don't take me too serious. I would like to set opacity of some element to 0 through JavaScript, using GetElementById function. This is my short code inside body of HTML: Code: <script>
document.getElementById("element").style.opacity="0";
</script>
<div id="element">
noopacity
</div>
It doesn't seem to work, what am I doing wrong? Thanks. Hey, I have a script that needs to see the current opacity value of divs but I can not find the code to make it work in IE. I've googled it for over an hour with no answer. Any suggestions? For non-IE browsers, here is the code I am using Code: div_opac = document.getElementById(some_div).style.opacity; Thanks for the help! Ok so I have two images class1 & class2 which both have opacity:0.3; and filter:alpha(opacity=30); added with css. I am trying to get it so when I click on class1 it will either fade in (ideally) or display as 100% opacity. I do not want both class's to be able to be 100% so if one is clicked the other would be 30%. I also have multiple instances of class1 and class2. If anyone can help me I will praise you on the highest mountain! Thanks, B Hi there. I just started out learning javascript and jQuery.. and here's one of those bump that Im unable to pass through.. So here's the problem.. I tried writing a simple modal effect on the site I was working on.. since I'm fairly new to javascript and jQuery so please bear with me The problem that I am having is that the opacity of the #dialog (the white part in the middle ) is being inherited from the #mask.. the black part that covers the page.. I tried setting the opacity to #dialog{opacity:1;} but to no avail it's not working.. I'm trying to change the opacity cause the opacity is affecting the readability of the content.. Here's the simple code that I wrote.. can you please check them up? Its been only two days since I started reading about Javascript and jQuery so please have some mercy you can check up the page here.. http://dev.crownshipping.com.ph/single_update.html just click on the boats.. and the modal thingy will pop up.. hope someone can help and enlighten me.. I'mma fast learner.. if you can give resource links.. except w3schools.. I already read the whole thing Thanks Andrew here's the html code.. Code: <div id="mask">
<div id="dialog" class="window">
<!-- close button is defined as close class -->
<a href="#" class="close">Close X</a>
<h1>Vessel Name - KiKi C</h1>
<img src="images/single_update.jpg" alt="xxx"/>
</div><!--dialog-->
</div><!--mask-->
here's the javascript code.. Code: <script src="js/jquery-1.2.6.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(document).ready(function(){
//select all the a tag with name equal to modal
$("a.modal").click(function(e) {
//Cancel the link behavior
e.preventDefault();
//Get the A tag
var id = $(this).attr('href');
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(document).width();
//Set height and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow",.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$('#dialog').css('top', winH/2-$(id).height()/2);
$('#dialog').css('left', winW/2-$(id).width()/2);
//transition effect
$('#dialog').fadeIn(2000);
$('#dialog').fadeTo("slow",1);
});
//if close button is clicked
$('.close').click(function (e) {
//Cancel the link behavior
e.preventDefault();
$('#mask, .window').fadeOut(1000);
});
});
</script>
the following script works great in Chrome. very smooth... but in Firefox and IE it is very jittery/jumpy from 0 to 100 opacity too quickly... Code: function changeFadeLevel(newval){
document.getElementById("redbg").style.opacity=newval/100;
document.getElementById("redbg").style.filter = "alpha(opacity=" + newval + ")";
}
function changeBg(state){
if(state==1){
for(var i=0; i<=100; i++){
setTimeout("changeFadeLevel("+i+")",i*3);
}
document.getElementById("overlaystatus").value='on';
}else{
for(var i=0; i<=100; i++){
setTimeout("changeFadeLevel("+(100-i)+")",i*3);
}
document.getElementById("overlaystatus").value='off';
}
}
Code: <input type="hidden" id="overlaystatus" value="off" /> <img src="/bg.jpg" id="bg" border"0" /> <img src="/redbg.jpg" id="redbg" border="0" /> the images are 1596x1057 resolution stretched to 100% width with css Code: html, body {
height: 100%;
margin: 0;
padding: 0;
background:#000;
font-family:Arial, Helvetica, sans-serif;
}
img#bg{
left: 0px;
min-width: 1000px;
position: absolute;
top: 0px;
width: 100%;
z-index: 1;
}
img#redbg{
left: 0px;
min-width: 1000px;
position: absolute;
top: 0px;
width: 100%;
z-index: 5;
opacity:0.0;
filter:alpha(opacity=0);
}
on my site he http://www.jbiddulph.com/niche/ I would like to apply an opacity on my navigation roll over, can someone help me here?! here is the code for my Home link: Code:
$('#nav ul li.home').hover(
function() {
$(this).stop().animate({backgroundColor:'#ff8300'}, 1300);
}, function () {
$(this).stop().animate({backgroundColor:'#666666'}, 100);
});
I'm using code based on these functions to fade images up from black as part of a slideshow: Code: function fade_down(id, millisec) {
// fade image from 0% to 100% visible
var speed = Math.round(millisec / 100);
var timer = 0;
for(i = 100; i >= 0; i--) {
setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
timer++;
}
}
function fade_up(id, millisec) {
// fade image from 0% to 100% visible
var speed = Math.round(millisec / 100);
var timer = 0;
for(i = 0; i <= 100; i++) {
setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
timer++;
}
}
function changeOpac(opacity, id) {
//change the opacity for different browsers
var object = document.getElementById(id).style;
object.opacity = (opacity / 100);
object.MozOpacity = (opacity / 100);
object.KhtmlOpacity = (opacity / 100);
object.filter = "alpha(opacity=" + opacity + ")";
}
It works OK but there is often noticeable flicker, even when the images are preloaded. See here http://www.pwtphoto.com/flowers/slid.../D300_1873.jpg and click "Start Slidehow". This happens in all browsers - it's not the well documented Firefox glitch. The images are pretty large - typically 1000 x 670 pixels - which may be part of the problem. Is there a way to fade images up or down more smoothly? Is there any alternative to using opacity? Thanks. |
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