jQuery: Can you find the selected element's opacity with jQuery?

I have a filter running on a set of list elements which fades the lesser desirable elements down to 0.25 opacity but I'd love to have their opacity return to 1 and then back down to 0.25 on hover over and out. Is this fairly simple to do?

I'm only having trouble finding a way to grab the selected element's current opacity so I can store it in a variable for use.

$('#centerPanel li').hover(function(){
        var currentOpacity = $(this).?????
     开发者_Go百科   $(this).fadeTo(1,1);
    },
    function(){
        $(this).fadeTo(1,currentOpacity);
    });

Try $(this).css("opacity")

source

there are complete guide "Get Current Opacity in MSIE using jQuery" http://zenverse.net/get-current-opacity-in-msie-using-jquery-cross-browser-codes/

code:

function getopacity(elem) {
  var ori = $(elem).css('opacity');
  var ori2 = $(elem).css('filter');
  if (ori2) {
    ori2 = parseInt( ori2.replace(')','').replace('alpha(opacity=','') ) / 100;
    if (!isNaN(ori2) && ori2 != '') {
      ori = ori2;
    }
  }
  return ori;
}

//to use it
var currentopacity = getopacity('div.the-element');

$('#centerPanel li').hover(function(){
    if(!$(this).is(':animated'))
       $(this).animate({opacity: 'toggle'}, 1000);
},
function(){
    if(!$(this).is(':animated'))
       $(this).animate({opacity: 'toggle'}, 1000);
});

You need to set the mouseout opacity var outside the function, this will prevent your function to change that value.

nohoverOpacity = $('#centerPanel li').css("opacity");
hoverOpacity = 1;
dur = 1000;
$('#centerPanel li').hover(function(){
        $(this).fadeTo(dur,hoverOpacity);
    },function(){
        $(this).fadeTo(dur,nohoverOpacity);
});

Is this what you want? :)