Use one javascript script to affect all input fields

The onfocus and onblur are events triggered.

Those stay inside the Tags.

What you CAN do, is take the "logic" part and put it in a method and call the method instead of having to repeat the code every time.

<script>
mymethod()
{
// code implementation goes here
}
</script>
.
.
.
<INPUT TYPE="TEXT" NAME="NC1" VALUE="Prefix" onfocus="MyMethod('myparameter1 value', 'myparameter2 value')" onblur="MyMethod2('myparameter1 value', 'myparameter2 value')">

etc



Why is this important? If at any point in time you want to change the behaviour, you only have to do it once, in just one location and the behaviour globally changes for all of them

So I can't do it my way? Because that would be perfect for me. Your solution is some step forward, but it's not exactly what I wanted. Thanks for your help. Any other ideas are welcome.

You could have a script that is executed when the page is loaded that scans through the Document Object Model (DOM) and locates each input field.  It could then add onfocus and onblur events for each.

Time to look at jQuery!

http://api.jquery.com/live/

Try something like:

    <script language="javascript">

        var elems = document.getElementsByTagName("input");

        for (var idx = 0; idx != elems.length; ++idx)
        {
            elems[idx].onfocus = function() { if(this.value==this.defaultValue)this.value=''; }
            elems[idx].onblur = function() { if(this.value=='')this.value=this.defaultValue; }
        }


    </script>

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Proculopsis, it works perfectly, exactly what I wanted, thanks!

It being even more friendlier:

<script type="text/javascript">
    $(function(){              
        $("input").focus(function(){
            if(($(this).val() == $(this)[0].defaultValue)) {
                $(this).val('');
            }
        }).blur(function(){                     
            if ($(this).val() == '') {
                var defVal = $(this)[0].defaultValue;
                $(this).val(defVal);
            }
        });
        
    });

</script>

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:

doh!

took our var definition as not required.

    $(function(){              
        $("input").focus(function(){
            if(($(this).val() == $(this)[0].defaultValue)) {
                $(this).val('');
            }
        }).blur(function(){                     
            if ($(this).val() == '') {            
                $(this).val($(this)[0].defaultValue);
            }
        });        
    });

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Sorry darren-w-, I should wait for other suggestions before accepting Proculopsis's comment. Thanks for your help.