js function - Make inline divs the same height and fill it.

equalheight.js

/**
 * Make inline divs the same height and fill it.
 * @param {string} container - selector string of parent container.
 * @param {string} [blocktobottom] - selector string of object to fill height.
 */
equalheight = function(container, blocktobottom) {

    function fillinside($el, currentTallest, blocktobottom) {
        if (typeof blocktobottom !== 'undefined' && $el.height() < currentTallest) {
            $el.find(blocktobottom).css('padding-top', ((currentTallest - $el.height()) + parseInt($el.find(blocktobottom).css('padding-top'), 10)));
        }
    }

    var currentTallest = 0,
        currentRowStart = 0,
        rowDivs = new Array(),
        $el,
        topPosition = 0;
    $(container).each(function() {

        $el = $(this);
        $($el).height('auto');
        topPostion = $el.position().top;

        if (currentRowStart != topPostion) {
            for (currentDiv = 0; currentDiv < rowDivs.length; currentDiv++) {
                fillinside(rowDivs[currentDiv], currentTallest, blocktobottom);
                rowDivs[currentDiv].height(currentTallest);
            }
            rowDivs.length = 0; // empty the array
            currentRowStart = topPostion;
            currentTallest = $el.height();
            rowDivs.push($el);
        } else {
            rowDivs.push($el);
            currentTallest = (currentTallest < $el.height()) ? ($el.height()) : (currentTallest);
        }

	});
	for (currentDiv = 0; currentDiv < rowDivs.length; currentDiv++) {
		fillinside(rowDivs[currentDiv], currentTallest, blocktobottom);
		rowDivs[currentDiv].height(currentTallest);
	}
}