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Element.addMethods({ | |
resizeImg: function(element){ | |
var element = $(element); | |
var img = element.down('img'); | |
var imgDims = img.getDimensions(); | |
var ratio = imgDims['height']/imgDims['width']; | |
var winDims = document.viewport.getDimensions(); | |
if ((winDims['height']/winDims['width']) > ratio) { | |
winDims['width'] = Math.ceil(winDims['height'] / ratio); | |
} else { | |
winDims['height'] = Math.ceil(winDims['width'] * ratio); | |
} | |
$A([img, element]).invoke('setStyle',{ | |
height: winDims['height'] + 'px', | |
width: winDims['width'] + 'px' | |
}); | |
return element; | |
} | |
}); | |
//change this variable to match your layout | |
var origDiv = $('theIdOfYourImageDiv').resizeImg(); | |
//resize the image on browser resize | |
Event.observe(window, 'resize', function(){ origDiv.resizeImg(); }); |
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