Question

showing a popup div onclick

Asked by: wrynn

can someone point me to a simple tutorial that explains how to let the user click an image button and have a small div poup above the mouse cursor , and can be hidden again by clicking "cancel" or somewhere else on the screen? only has to work in firefox

also the popup needs to occur without disrupting any of the layout of the page


thanks

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Asked On
2006-01-02 at 23:18:36ID21681785
Tags

div

,

popup

,

onclick

Topic

JavaScript

Participating Experts
2
Points
500
Comments
10

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Answers

 

by: SnowFlakePosted on 2006-01-02 at 23:21:59ID: 15596917

use the div's style.visibility and style.display
values to change its visibility when the image or the cacel are clicked

assuming the div is has an id=mydiv
then
<img src=.... onclick="var el=document.getElementById('mydiv');el.style.display='block';el.style.visibility='visible';">

and on the cancel
<sapn onclick="var el=document.getElementById('mydiv');el.style.display='none';el.style.visibility='hidden';">cancel</span>

 

by: SnowFlakePosted on 2006-01-02 at 23:30:31ID: 15596940

If you want browser compatibility then you can use the following which I got a while ago
from I don't know where.

//=======================================================
     //detect browser settings for showing and hiding DIVs
     isNS4 = (document.layers) ? true : false;
     isIE4 = (document.all && !document.getElementById) ? true : false;
     isIE5 = (document.all && document.getElementById) ? true : false;
     isNS6 = (!document.all && document.getElementById) ? true : false;
//=======================================================

function switchDiv(strDivName,bolVisible){
 //identify the element based on browser type
 if (isNS4) {
   objElement = document.layers[strDivName];
 } else if (isIE4) {
   objElement = document.all[strDivName].style;
 } else if (isIE5 || isNS6) {
   objElement = document.getElementById(strDivName).style;
 }
 
 if(isNS4){
     if(!bolVisible) {
       objElement.visibility ="hidden"
     } else {
       objElement.visibility ="visible"
     }    
 }else if(isIE4){
     if(!bolVisible) {
       objElement.visibility = "hidden";
     } else {
       objElement.visibility = "visible";
     }
 } else if (isIE5 || isNS6) {
      if(!bolVisible){
         objElement.display = "none";
      } else {
        objElement.display = "";
        }
      }
}

and then
<img src=.... onclick="switchDiv('mydiv',true);">

and on the cancel
<sapn onclick="switchDiv('mydiv',false);">cancel</span>

 

by: ndixonPosted on 2006-01-02 at 23:50:00ID: 15597001

The problem with the CSS visibility attribute is that it takes up "space" in the polished display.  Thats is, any space you have set to "visible='false'" will not appear, but any subsequent HTML will appear as if the block were still visible.  Hard to explain, but you'll see what I mean if it causes a problem.

 

by: SnowFlakePosted on 2006-01-03 at 00:08:50ID: 15597043

That is why my examples set both visibility and display.

 

by: wrynnPosted on 2006-01-03 at 00:11:57ID: 15597053

thanks snowflake i will check out your code in the morning

 

by: wrynnPosted on 2006-01-05 at 09:21:35ID: 15620367

can you show me an example of a "floating style" popup that would basically popup without pshing everything below it downward on the page?

in other words i want it to just popup as a layer on top of the other layers


 

by: ndixonPosted on 2006-01-05 at 09:30:33ID: 15620487

with a div

<div style="position:absolute;top:20px;left:20px;">[content goes here]</div>

of course you would probably use JS to position the div in the middle of the page.

With absolute position, ignoring z-indexes for now it will appear over the top of everything else.

 

by: SnowFlakePosted on 2006-01-05 at 13:57:58ID: 15623437

just give the span an ID so you can use the functions I offered you above.
SnowFlake

20120131-EE-VQP-002

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