Equal height divs

gistfile1.js

 function equalHeight(elem) {
        var currentTallest = 0,
        currentRowStart = 0,
        rowDivs = [],
        $el,
        topPosition = 0;
    $(elem).each(function() {
        $el = $(this);
        $($el).height('auto');
        topPostion = $el.position().top;
        if (currentRowStart != topPostion) {
            for (currentDiv = 0; currentDiv < rowDivs.length; currentDiv++) {
                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++) {
            rowDivs[currentDiv].height(currentTallest);
        }
    });
 }

 //usage:
 // equalHeight('.blocks');