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2012-02-04T22:40:26.053
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2012-02-04T23:18:29.077
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<p>No there isn't. Even with multiple background images you still only have one attribute background-image. You need to sort out the string value yourself and hand it back. Something like the following will do the trick.</p> <p><a href="http://jsfiddle.net/cHave/6/" rel="nofollow">jsFiddle</a></p> <pre><code><div id="showcase"></div> <button class="changeBG firstBG">change first bg image</button> <button class="changeBG secondBG">change second bg image</button> <button class="changeBG thirdBG">change third bg image</button> var backgrounds = [ ["url11", "url12", "url13"], ["url21", "url22", "url23"], ["url31", "url32", "url33"], ]; $('#showcase').data('currentBGs', [0,0,0]); $('.changeBG').on('click',function(){ var $button = $(this), whichButton, whichBGnum, bgLength, currentBGs, bgString, bg0, bg1, bg2; if( $button.hasClass('firstBG') ){ whichButton = 0; }else if( $button.hasClass('secondBG') ){ whichButton = 1; }else if( $button.hasClass('thirdBG') ){ whichButton = 2; } currentBGs = $('#showcase').data('currentBGs'); currentBGnum = currentBGs[whichButton]; bgLength = backgrounds[whichButton].length; currentBGnum = ( currentBGnum + 1 ) % bgLength; currentBGs[whichButton] = currentBGnum; bg0 = backgrounds[0][ currentBGs[0] ]; bg1 = backgrounds[1][ currentBGs[1] ]; bg2 = backgrounds[2][ currentBGs[2] ]; bgString = 'url(' + bg0 + '), url(' + bg1 + '), url(' + bg2 + ')'; $('#showcase').data('currentBGs', currentBGs) .css('background-image', bgString); }); </code></pre> <p>This code is not meant to be optimized, but readable. The example pics are silly, they are just whatever browser windows I had open.</p> <ul> <li>Keep a JS array of all the pics. This is a multidimensional array, first level represents each part of the background, second level is each option for that background.</li> <li>Write down the current state of the backgrounds, here we just <code>.data()</code>.</li> <li>Figure out which button was clicked</li> <li>Get the current state on the display</li> <li>Cycle the appropriate counter</li> <li>Get the new backgrounds</li> <li>Update the state of the display with both the data and the new backgrounds.</li> </ul>
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1. POSelect and change a specific background-image with jQuery
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