Save/load forms in localStorage. Useful for filling out forms over and over.

compress.js

(function(){var f="data-form-local-storage-button-container";if(document.getElementById(f)){jQuery(f).show();return}var e=document.createElement("div"),c=document.getElementsByTagName("body")[0];e.id=f;e.style.position="fixed";e.style.top="0";e.style.right="0";e.style.padding="5px 10px";e.style.zIndex=1001;e.style.fontSize="12px";e.style.color="#222";e.style.backgroundColor="#eee";function a(h,j){var i=document.getElementsByTagName("head")[0],b=false,g=document.createElement("script");g.src=h;g.onload=g.onreadystatechange=function(){if(!b&&(!this.readyState||this.readyState=="loaded"||this.readyState=="complete")){b=true;j();g.onload=g.onreadystatechange=null;i.removeChild(g)}};i.appendChild(g)}if(typeof jQuery!="undefined"){return d()}else{if(typeof $=="function"){otherlib=true}}a("//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js",function(){if(typeof jQuery=="undefined"){alert("couldn't load jquery?")}return d()});function d(){e.innerHTML="<button data-local-storage-form-load>Load</button><button data-local-storage-form-save>Save</button><button data-local-storage-form-hide>Hide</button>";c.appendChild(e);function b(g){jQuery("form").each(function(){var h=jQuery(this).attr("name");if(!h){return}g(h,jQuery(this))})}jQuery("[data-local-storage-form-load]").click(function(){b(function(i,h){var g=JSON.parse(localStorage.getItem("data-form-storage:"+i));jQuery.each(g,function(j,k){h.find("[name="+k.name+"]").val(k.val)})})});jQuery("[data-local-storage-form-save]").click(function(){b(function(i,h){var g=[];h.find("input, textarea, select").each(function(){g.push({name:jQuery(this).attr("name"),val:jQuery(this).val()})});localStorage.setItem("data-form-storage:"+i,JSON.stringify(g))})});jQuery("[data-local-storage-form-hid]").click(function(){jQuery(f).hide()})}})();

load-save.js

(function() {
    var id = "data-form-local-storage-button-container";
    if (document.getElementById(id)) {
        jQuery(id).show();
        return;
    }

    var el = document.createElement('div'),
        b = document.getElementsByTagName('body')[0];

    el.id = id;
    el.style.position = 'fixed';
    el.style.top = '0';
    el.style.right = '0';
    el.style.padding = '5px 10px';
    el.style.zIndex  =  1001;
    el.style.fontSize = '12px';
    el.style.color = '#222';
    el.style.backgroundColor = '#eee';

    // more or less stolen form jquery core and adapted by paul irish
    function getScript(url, success){
        var head = document.getElementsByTagName('head')[0],
            done = false,
            script = document.createElement('script');

        script.src = url;

        script.onload = script.onreadystatechange = function() {
            if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete') ) {
                done = true;
                success();
                script.onload = script.onreadystatechange = null;
                head.removeChild(script);
            }
        };
        head.appendChild(script);
    }

    if (typeof jQuery != 'undefined') {
        return render();
    } else if (typeof $ == 'function') {
        otherlib = true;
    }

    getScript('//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js', function() {
        if (typeof jQuery == 'undefined') {
            alert("couldn't load jquery?");
        }
        return render();
    });

    function render() {
        el.innerHTML = "<button data-local-storage-form-load>Load</button>" +
            "<button data-local-storage-form-save>Save</button>" +
            "<button data-local-storage-form-hide>Hide</button>";

        b.appendChild(el);

        function eachForm(callback) {
            jQuery("form").each(function() {
                var n = jQuery(this).attr("name");
                if (!n) {
                    return;
                }
                callback(n, jQuery(this));
            });
        }

        jQuery("[data-local-storage-form-load]").click(function() {
            eachForm(function(n, f) {
                var data = JSON.parse(localStorage.getItem("data-form-storage:" + n));
                jQuery.each(data, function(i, entry) {
                    f.find("[name=" + entry.name + "]").val(entry.val);
                });
            });
        });

        jQuery("[data-local-storage-form-save]").click(function() {
            eachForm(function(n, f) {
                var data = [];
                f.find("input, textarea, select").each(function() {
                    data.push({name: jQuery(this).attr("name"), val: jQuery(this).val()});
                });
                localStorage.setItem("data-form-storage:" + n, JSON.stringify(data));
            });
        });

        jQuery("[data-local-storage-form-hid]").click(function() { jQuery(id).hide(); });
    }
})();