Need to cut down some code [+rep]
Hey, I'm trying to get an image to fade in on mouseover and then fadeout when the mouse comes off it. I'm totally useless with this code, so can anyone cut it down as much as possible for me? It's got loads of junk code because I took it off another site...
Don't ask me why I used that image lol.
Oh and it's called mona, don't ask why either. lol. Thanks.
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Cross Browser Image Fader - Demo</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script type="text/javascript">
var faders=[];
// Preset each image's initial opacity (0 to 100):
// ex: faders[x]=['image_id', initial_opacity];
faders[0]=['mona', 50];
faders[1]=['arch', 0];
function fade(el, way, op, opinc, speed){
if(!fade.prprt&&!fade.ie)
return;
var id=typeof el=='string'? el : el.id, el=typeof el=='object'? el : document.getElementById(el);
clearTimeout(fade[id+'timer']);
var op_obj=fade.ie6? el.filters[0] : el.style,
waym=way=='in'? 1 : -1, speed=speed? speed*1 : 30, opinc=opinc&&opinc>=1? opinc*(fade.ie? 1 : .01) : opinc? opinc : fade.ie? 5 : .05,
op=op&&fade.ie? op*1 : op&&op*1>=1? Math.min(op*.01, .99) : op? op : waym>0&&fade.ie? 100 : waym>0? .99 : 0;
if(!fade.ie6&&!fade[id+'yet']){
if(fade.prprt)
op_obj[fade.prprt]=Math.min(fade.preset(id)*.01, .99);
else if(fade.ie)
op_obj.filter='alpha(opacity='+fade.preset(id)+')';
fade[id+'yet']=true;
}
if(fade.prprt&&Math.abs(op*1-op_obj[fade.prprt]*1)<opinc)
op_obj[fade.prprt]=op;
else if(fade.prprt)
op_obj[fade.prprt]=fade.ie6? op_obj[fade.prprt]*1 + opinc*waym : Math.min(op_obj[fade.prprt]*1 + opinc*waym, .99);
else if (fade.ie&&Math.abs(op*1 - op_obj.filter.replace(/\D/g,'')*1)<opinc)
op_obj.filter='alpha(opacity='+op+')';
else if (fade.ie)
op_obj.filter='alpha(opacity='+[op_obj.filter.replace(/\D/g,'')*1 + opinc*waym]+')';
else
return;
if(op_obj[fade.prprt]&&op_obj[fade.prprt]*waym<op*waym||!fade.ie6&&fade.ie&&op_obj.filter.replace(/\D/g,'')*waym<op*waym)
fade[id+'timer']=setTimeout(function(){fade(el, way, op, opinc, speed)}, speed);
}
if(document.documentElement&&document.documentElement.style){
fade.d=document.documentElement, fade.t=function(o){return typeof fade.d.style[o]=='string'}; if(fade.d.filters)
document.write('<span id="ie_test" style="filter:progid:DXImageTransform.Microsoft.alpha(opacity=0);position:absolute;top:-1000px;">p<\/span>');
fade.ie=fade.d.filters&&ie_test.filters[0], fade.ie6=fade.ie&&typeof ie_test.filters[0].opacity=='number',
fade.prprt=fade.t('opacity')||fade.ie6? 'opacity' : fade.t('MozOpacity')? 'MozOpacity' : fade.t('KhtmlOpacity')? 'KhtmlOpacity' : null;
}
fade.set=function(){
var prop=fade.prprt=='opacity'? 'opacity' : fade.prprt=='MozOpacity'? '-moz-opacity' : '-khtml-opacity';
document.write('\n<style type="text/css">\n')
for (var i = 0; i < faders.length; i++)
document.write('#'+faders[i][0]+' {\n'+
(fade.ie? 'filter:progid:DXImageTransform.Microsoft.alpha(opacity='+faders[i][1]+')' : prop+':'+Math.min(faders[i][1]*.01, .99))+';\n}\n');
document.write('<\/style>\n')
}
fade.preset=function(id){
for (var i = 0; i < faders.length; i++)
if (id==faders[i][0])
return faders[i][1];
return 0;
}
if(fade.prprt||fade.ie)
fade.set();
</script>
</head>
<body>
<div id="fadebg1"><img id="mona"
src="http://i279.photobucket.com/albums/kk137/HabboPhotoAlbum/Rincewind.png" onmouseover="fade(this, 'in');" onmouseout="fade(this, 'out',50);" alt="Monalisa Image" title="Mona"></div>
<div id="frond"><img id="arch" src="frond2_a.png" alt="Frond Arches Image" title="" onmouseover="fade(this, 'in',100,2,50);"
onmouseout="fade(this, 'out',0,2,50);"></div>
</body>
</html>
