Demos:

  1. Simple tooltip
  2. Image tooltip with preview
  3. Link tooltip with preview

Installation

Step 1

First, you have to include the JQuery library between the <head> and </head> tags of your html page:

<script type="text/javascript" src="jquery-latest.pack.js"></script>

Step 2

Once you inclued JQuery to your html file, you have to include the following functions. To do so, embed it within <script type=”text/javascript”> //the code here </script>, or even better, put it in a separate .js file.

this.screenshotPreview = function(){
        /* CONFIG */

                xOffset = 10;
                yOffset = 30;

                // these 2 variable determine popup's distance from the cursor
                // you might want to adjust to get the right result

        /* END CONFIG */
        $("a.screenshot").hover(function(e){
                this.t = this.title;
                this.title = "";
                var c = (this.t != "") ? "
" + this.t : "";
                $("body").append("<p id='screenshot'><img src='"+ this.rel +"' alt='url preview' />"+ c +"</p>");
                $("#screenshot")
                        .css("top",(e.pageY - xOffset) + "px")
                        .css("left",(e.pageX + yOffset) + "px")
                        .fadeIn("fast");
    },
        function(){
                this.title = this.t;
                $("#screenshot").remove();
    });
        $("a.screenshot").mousemove(function(e){
                $("#screenshot")
                        .css("top",(e.pageY - xOffset) + "px")
                        .css("left",(e.pageX + yOffset) + "px");
        });
};
this.imagePreview = function(){
        /* CONFIG */

                xOffset = 10;
                yOffset = 30;

                // these 2 variable determine popup's distance from the cursor
                // you might want to adjust to get the right result

        /* END CONFIG */
        $("a.preview").hover(function(e){
                this.t = this.title;
                this.title = "";
                var c = (this.t != "") ? "
" + this.t : "";
                $("body").append("<p id='preview'><img src='"+ this.href +"' alt='Image preview' />"+ c +"</p>");
                $("#preview")
                        .css("top",(e.pageY - xOffset) + "px")
                        .css("left",(e.pageX + yOffset) + "px")
                        .fadeIn("fast");
    },
        function(){
                this.title = this.t;
                $("#preview").remove();
    });
        $("a.preview").mousemove(function(e){
                $("#preview")
                        .css("top",(e.pageY - xOffset) + "px")
                        .css("left",(e.pageX + yOffset) + "px");
        });
};
this.tooltip = function(){
        /* CONFIG */
                xOffset = 10;
                yOffset = 20;
                // these 2 variable determine popup's distance from the cursor
                // you might want to adjust to get the right result
        /* END CONFIG */
        $("a.tooltip").hover(function(e){
                this.t = this.title;
                this.title = "";
                $("body").append("<p id='tooltip'>"+ this.t +"</p>");
                $("#tooltip")
                        .css("top",(e.pageY - xOffset) + "px")
                        .css("left",(e.pageX + yOffset) + "px")
                        .fadeIn("fast");
    },
        function(){
                this.title = this.t;
                $("#tooltip").remove();
    });
        $("a.tooltip").mousemove(function(e){
                $("#tooltip")
                        .css("top",(e.pageY - xOffset) + "px")
                        .css("left",(e.pageX + yOffset) + "px");
        });
};

Step 3

Once you inclued the gallery functions, you have to activate it. Like for the functions, you can embed it on your html page or put it in a separate .js file.

$(document).ready(function(){
        tooltip();//active les tooltip simple
        imagePreview();//active les tooltip image preview
        screenshotPreview();//active les tooltip lien avec preview
});

Step 4

The gallery is now fully functionnal. Though, we had to use some css to style it.
Paste the following code in your css file:

#screenshot{
        position:absolute;
        border:1px solid #ccc;
        background:#333;
        padding:5px;
        display:none;
        color:#fff;
}

#preview{
        position:absolute;
        border:1px solid #ccc;
        background:#333;
        padding:5px;
        display:none;
        color:#fff;
}

#tooltip{
        position:absolute;
        border:1px solid #333;
        background:#f7f5d1;
        padding:2px 5px;
        color:#333;
        display:none;
}

Step 5

Your gallery is now ready to use. Here’s 3 ways to use it:

To create a classic, but cool tooltip on a link, you have to give the html element a tooltip class, as well as a title:

<a href="http://cssglobe.com" class="tooltip" title="Web Standards Magazine">Roll over for tooltip</a>

To create an very fancy image preview, you have to add the preview class to your html element:

<a href="image.jpg" class="preview" title="Great looking landscape">Roll over to preview</a>

To create an image preview with a link to the full size image, you have to add the screenshot class to your html element, and a rel attribute, containing the full size image url as a value:

<a href="http://www.cssglobe.com" class="screenshot" rel="cssg_screenshot.jpg" title="Web Standards Magazine">
Css Globe</a>

This article is a translation from the French blog WebInventif.

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