web/build_farm.js

   1 function handle(id)
   2 {
   3         // get a reference to the output block
   4         outputBlock = document.getElementById("output-" + id);
   5
   6         // and the image that's next to the block
   7         img = document.getElementById("img-" + id);
   8
   9         old_src = img.getAttribute("src");
  10
  11         current_display = outputBlock.style.display;
  12
  13         // try to handle the case where the display is not explicitly set
  14         if (current_display == "") {
  15                 if (outputBlock.currentStyle) { // ack, IE
  16                         current_display = outputBlock.currentStyle.display;
  17                 }
  18                 else if (document.defaultView.getComputedStyle) { // oooh, DOM
  19                         var style_list = document.defaultView.getComputedStyle(outputBlock, "");
  20
  21                         // konqueor has getComputedStyle, but it does not work
  22                         if (style_list != null) {
  23                                 current_display = style_list.getPropertyValue("display");
  24                         }
  25                 }
  26                 // in the case than neither works, we will do nothing. it just
  27                 // means the user will have to click twice to do the initial
  28                 // closing
  29         }
  30
  31         if (current_display == "block") {
  32                 outputBlock.style.display = "none";
  33                 img.setAttribute("src", old_src.replace("_hide", "_unhide"));
  34         }
  35         else {
  36                 outputBlock.style.display = "block";
  37                 img.setAttribute("src", old_src.replace("_unhide", "_hide"));
  38         }
  39 }