amycheng

function inView(el){
    //check if a DOM element is in view
    var scrollDistance=document.body.scrollTop;
    if (scrollDistance>=el.offsetTop&&scrollDistance<el.offsetHeight+el.offsetTop) {
        return true;
    }else{
        return false;
    }
}

amycheng

var 
cookie = {
    /*
     *Cookie Helpers
     *Reference: http://www.quirksmode.org/js/cookies.html
     */
    create: function (name,value,days) {
        if (days) {
            var date = new Date();
            date.setTime(date.getTime()+(days*24*60*60*1000));

amycheng

   $.fn.transitionEnd = function(callback) {
        //plugin for detecting the end of a transition and then doing a callback
        $(this).one('webkitTransitionEnd otransitionend msTransitionEnd transitionend',   
                    function(e) {
                        if (typeof callback == 'function') { 
                            callback.call(this); 
                        }
                    }); 
    };

amycheng

$(function() {
  	    function isPlaceholderSupported() {
		        var input = document.createElement("input");
		        return ('placeholder' in input);
		    } 

		    var placeholdersupport = isPlaceholderSupported();

		    if (placeholdersupport == false) {
		        // If there is no placeholder support,

amycheng

        $formField.click(function(){
            var $_this= $(this);
            $_this
                .css('opacity','1') 
                .find('input').removeAttr('disabled');

            $_this.siblings()
                            .css('opacity','.5')
                            .find('input').attr('disabled','disabled');
        });