Javascript alertbox help

[asifnayem]

I need help about javascript alertbox
when giving link in textarea a javascript alert will open where the link should put and after putting the link the link will automatically putted in the textarea. can anyone help plz?

[something else]

<html>
 <head>
 <script type="text/javascript">
//url prompt to textarea, by something else on coding-talk.com forums :P
 function addurl()
 {
     var url=prompt('enter a url','http://');
     if (url!=null && url!="" && url!="http://")
    {
        var details = document.getElementById('str').value;
        document.getElementById('str').value = details+'[url='+url+']'+url+'[/url]';
    }
 }
 </script>
 </head>
 <body>

 <input type="button" onclick="addurl()" value="Add Url" />
 <textarea id="str" cols="50" rows="11"></textarea>
 </body>
 </html> 

[asifnayem]

how to use this code! this is much smarter than normal alert box but i can't make it work. please bro check this to work with.

[something else]

try:

// Apprise 1.5 by Daniel Raftery
// http://thrivingkings.com/apprise
//
// Button text added by Adam Bezulski
//
//url prompt to textarea, by something else on coding-talk.com forums :P 
 function addurl() 
 { 
     var url=prompt('enter a url','http://'); 
     if (url!=null && url!="" && url!="http://") 
    { 
        var details = document.getElementById('str').value; 
        document.getElementById('str').value = details+'[url='+url+']'+url+'[/url]'; 
    } 
 }

function apprise(string, args, callback)
    {
    var default_args =
        {
        'confirm'        :    false,         // Ok and Cancel buttons
        'verify'        :    false,        // Yes and No buttons
        'input'            :    false,         // Text input (can be true or string for default text)
        'animate'        :    false,        // Groovy animation (can true or number, default is 400)
        'textOk'        :    'Ok',        // Ok button default text
        'textCancel'    :    'Cancel',    // Cancel button default text
        'textYes'        :    'Yes',        // Yes button default text
        'textNo'        :    'No'        // No button default text
        }
    
    if(args) 
        {
        for(var index in default_args) 
            { if(typeof args[index] == "undefined") args[index] = default_args[index]; } 
        }
    
    var aHeight = $(document).height();
    var aWidth = $(document).width();
    $('body').append('<div class="appriseOverlay" id="aOverlay"></div>');
    $('.appriseOverlay').css('height', aHeight).css('width', aWidth).fadeIn(100);
    $('body').append('<div class="appriseOuter"></div>');
    $('.appriseOuter').append('<div class="appriseInner"></div>');
    $('.appriseInner').append(string);
    $('.appriseOuter').css("left", ( $(window).width() - $('.appriseOuter').width() ) / 2+$(window).scrollLeft() + "px");
    
    if(args)
        {
        if(args['animate'])
            { 
            var aniSpeed = args['animate'];
            if(isNaN(aniSpeed)) { aniSpeed = 400; }
            $('.appriseOuter').css('top', '-200px').show().animate({top:"100px"}, aniSpeed);
            }
        else
            { $('.appriseOuter').css('top', '100px').fadeIn(200); }
        }
    else
        { $('.appriseOuter').css('top', '100px').fadeIn(200); }
    
    if(args)
        {
        if(args['input'])
            {
            if(typeof(args['input'])=='string')
                {
                $('.appriseInner').append('<div class="aInput"><input id="str" type="text" class="aTextbox" t="aTextbox" value="'+args['input']+'" /></div>');
                }
            else
                {
                $('.appriseInner').append('<div class="aInput"><input id="str" type="text" class="aTextbox" t="aTextbox" /></div>');
                }
            $('.aTextbox').focus();
            }
        }
    
    $('.appriseInner').append('<div class="aButtons"></div>');
    if(args)
        {
        if(args['confirm'] || args['input'])
            { 
            $('.aButtons').append('<button value="ok">'+args['textOk']+'</button>');
            $('.aButtons').append('<button value="cancel">'+args['textCancel']+'</button>'); 
            }
        else if(args['verify'])
            {
            $('.aButtons').append('<button value="ok">'+args['textYes']+'</button>');
            $('.aButtons').append('<button value="cancel">'+args['textNo']+'</button>');
            }
        else
            { $('.aButtons').append('<button value="ok">'+args['textOk']+'</button>'); }
        }
    else
        { $('.aButtons').append('<button value="ok">Ok</button>'); }
    
    $(document).keydown(function(e) 
        {
        if($('.appriseOverlay').is(':visible'))
            {
            if(e.keyCode == 13) 
                { $('.aButtons > button[value="ok"]').click(); }
            if(e.keyCode == 27) 
                { $('.aButtons > button[value="cancel"]').click(); }
            }
        });
    
    var aText = $('.aTextbox').val();
    if(!aText) { aText = false; }
    $('.aTextbox').keyup(function()
        { aText = $(this).val(); });
   
    $('.aButtons > button').click(function()
        {
        $('.appriseOverlay').remove();
        $('.appriseOuter').remove();
        if(callback)
            {
            var wButton = $(this).attr("value");
            if(wButton=='ok')
                { 
                if(args)
                    {
                    if(args['input'])
                        { callback(aText); }
                    else
                        { callback(true); }
                    }
                else
                    { callback(true); }
                }
            else if(wButton=='cancel')
                { callback(false); }
            }
        });
    } 

Added after 21 minutes:

oops will need to add <input type="button" onclick="addurl()" value="Add Url" /> into it also but that shouldnt be to hard :P