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§ Javascript function to add css

This javascript is a way to add an extra style node (css) into a page.

This creates a style node and appends it to the head element.  I use this in Greasemonkey to style other stuff I add to certain pages.  I won't go into that here.

Note the var mystyle=""+<r><![CDATA[ etc., works in FF but I think it fails in IE; never tried in Safari.  I don't know the ins and outs of this, but it's basically a way to cheat and have multi-line strings in javascript.  I think.  For other browsers you may have to make the css all in one line.  If you use php, you could use the "multiline_to_single_line_javascript" function from Use iframe contents to change iframe to ajax div.

You may not have to use the setAttribute() function.  Comparing the Use iframe contents to change iframe to ajax div entry, you may be able to use style.type="text/css";

 


function addmystyle()
{
  //put the style in first so my div doesn't jump around
  var styles = document.createElement('style');
  styles.setAttribute('type', 'text/css');
  var mystyle=""+<r><![CDATA[
  .mylinksdiv a
  {
    float:left;
    margin:1px;
    padding:2px 5px;
    background-color:#cccccc;
    color:blue !important;
    font-weight:400 !important;
    opacity:.6;
  }
  .mylinksdiv a:hover
  {
    font-weight:900 !important;
  }
  div.mylinksdiv
  {
    float:left;
  }
  ]]></r>;
  var newStyle = document.createTextNode(mystyle);
  styles.appendChild(newStyle);
  var headRef = document.getElementsByTagName('head')[0];
  headRef.appendChild(styles);
}

 


 

last edited on January 14th, 2010 at 2:20 PM

Comments

tadd says:

thanks for the post

March 17th, 2010 at 6:00 AM

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