JavaScript: Viewport Height

JavaScript: Viewport Height.js

$(document).ready(function(){
    $window = $(window);
    var targetHeight = $window.height();
    var viewportWidth = $window.width();
    if (viewportWidth > 640) {
        $('#targetID').css({ height: targetHeight });
    }
});

$(window).bind('resize', function () {
    var targetHeight = $window.height();
    var viewportWidth = $window.width();
    if (viewportWidth > 640) {
        $('#targetID').css({ height: targetHeight });
    }
});