Question

I have a really weird and confusing error.

Here is my code:

{if="$pjax === false"}{include="header"}{/if}
<script type="text/javascript">
    $(document).ready(function() {
        function clickclear(thisfield, defaulttext) {
            if (thisfield.value == defaulttext) {
                thisfield.value = "";
            }
        }
        function clickrecall(thisfield, defaulttext) {
            if (thisfield.value == "") {
                thisfield.value = defaulttext;
            }
        }
    });
</script>
<form action='./login' method='post' name='form'>
<ul class="form">
    <li><input type="text" name="username" value="Username" id="username" onclick="clickclear(this, 'Username')" onblur="clickrecall(this,'Username')"  /></li>
    <li><input type="password" name="password" value="Password" id="password" onclick="clickclear(this, 'Password')" onblur="clickrecall(this,'Password')" /></li>
    <li><span style='display:block;height:27px;float:left;line-height:27px;'>Remember Me</span> <div id='itoggle' style='float:right;'><input type="checkbox" id="remember" class='itoggle' /></div><div class='clearfix'></div></li>
</ul>
</form>
<a href="javascript: form.submit()" class="button white">Login</a>
{if="$pjax === false"}{include="footer"}{/if}

You can see there are two functions, clickclear and clickrecall. These get called from the form inputs on onClick and onBlur. However, when I run them, I get these javascript errors:

Uncaught ReferenceError: clickclear is not defined

Uncaught ReferenceError: clickrecall is not defined

Any ideas? I know it’s probably something really simple, but I can’t see it.

Answer 1

It’s because your functions are in the .ready() callback. These are not visible from the global scope (which is good).

It’s better using jQuery’s event attachment methods like .on():

$(document).ready(function(){

    //your code
    function clickclear(){...}
    function clickrecall(){...}

    //the handlers
    $('#username').on('click',function(){ //bind click handler
        clickclear(this,'Username');      //things to do on click
    }).on('blur',function(){              //chain blur handler
        clickrecall(this,'Username');     //things to do on blur
    });

    $('#password').on('click',function(){ //bind click handler
        clickclear(this,'Password');      //things to do on click
    }).on('blur',function(){              //chain blur handler
        clickrecall(this,'Password');     //things to do on blur
    });

    ...other handlers...

});

And a side note, there is a placeholder attribute for Chrome, which acts like placeholder text:

<input type="text" placeholder="username" />
<input type="password" placeholder="password" />