Alert Message and Dialog Box



Alert Message and Dialog BoxYou can display an alert message box to give a special announcement, provide information, or warn the readers before they view the full contents of your site. The pop up box will contain your message and have an “OK” button for viewers to proceed, or a prompt or cancel button to redirect readers to another site. We can further customize our Blog by asking for the reader's name and inserting this input automatically into a welcome message. This tutorial will show you how the JavaScript for these alert and dialog boxes can be inserted into your Blog.


Do note that because JavaScript programs run the moment the page is loaded, many users may, for security measures, set their browsers to disable JavaScripts. Also, too many of these scripts may make your page slow to load. Insert this only if you think it appropriate or useful. Since these are system dialog windows, they may look different in different browsers and operating systems.

Alert Box with OK button

You can have a serious message for sites with adult contents:-

Alert Message and Dialog Box

Or a light-hearted humorous message just for the fun of it:-

Alert Message and Dialog Box

To create an alert message box, login to your account, go to Template -> Page Elements -> Add a Page Element in your left sidebar or post body area, and select HTML/JavaScript. Paste the code shown below:-
<script type="text/javascript">
alert('You are about to enter an extremely funny site. People who are prone to laughing fits ... Beware!')
</script>
<noscript>Enable javascript in your browser to view an important message.</noscript>


Substitute the words in red with the message that you want to have displayed when users view your Blog. The words in green are the alternative text which will be displayed if the users have turned off their JavaScript functions.

Alert Box with Confirmation button

Although free speech is the order for the day, as authors of Blogs, we should be sensitive to the ethics and morality concerns of the people all over the world. If the Blog contains contents that are explicit or unsuitable for a select group of people, give the readers a choice not to proceed to read your Blog. The JavaScript for this alert box shows two buttons – “OK” and “Cancel” – which the readers can select. If their option is to “Cancel”, they will be redirected to a safe site. For this example, we have used Google's site as the safe landing page.

Alert Message and Dialog Box

To insert the alert dialog box, login to your account, go to Template -> Page Elements -> Add a Page Element in your left sidebar or post body area, and select HTML/JavaScript. Paste the code shown below:-


<script type="text/javascript">
confirm('This site contains explicit contents. Are you sure you want to continue?');
if (confirm('This site contains explicit contents. Are you sure you want to continue?')) {
window.location = "http://tips-for-new-bloggers.blogspot.com/";
}
else {
window.location = "http://www.google.com/";
}
</script>


Your message appears in the red portion. Enter your Blog URL in the bluecolored part of the code. This is where your visitors will go to if they click “OK”. In the orange part, enter the URL of the place to redirect your visitors to should they click “Cancel”.

Alert Box with Prompt field

Another type of dialog box prompts the user to enter some information. For instance, the prompt box can ask the reader for his name and use that to customize the web page. Be reminded that many browsers are configured to disable scripts that ask for information. Have fun customizing your Blog but don't make this a key aspect of the contents. For example, if you have a story that keeps mentioning the name of the reader, the parts where the name should be will appear “null”.

In Template -> Page Elements -> Add a Page Element we add a HTML/JavaScript and paste the following code:-


<script type="text/javascript">
var yourName = prompt("How can we address you?", "Reader");
</script>


The question can be changed. The user will be prompted to enter something in the dialog box. He can of course leave it blank and press “OK” or click “Cancel”.

Alert Message and Dialog Box

Below this JavaScript, in your main body, add another HTML/JavaScript page element. This time, you can type in this:-


Welcome back <script type="text/javascript">document.write(yourName)</script>! Feel free to look around. If you like what you read, mention us in your post or link to this site. Hope to see you again <script type="text/javascript">document.write(yourName)</script>


This is what will appear in your Blog, based on the input that the reader keys in.

Alert Message and Dialog Box

Change the wordings to suit you and wherever you want the reader's name mentioned, add the script (shown in red). Try to phrase the wordings such that if the user enters nothing and clicks “OK”, the blank space is not obvious. A prompt dialog box like this adds a personal touch to your Blog.

 
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