Degri.Tools = {};

Degri.Tools.SetGlobalOnLoad = function(f)
{
    var root = window.addEventListener || window.attachEvent ? window : document.addEventListener ? document : null
    if (root)
    {
       if(root.addEventListener) root.addEventListener("load", f, false)
       else if(root.attachEvent) root.attachEvent("onload", f)
    }
    else
    {
      if(typeof window.onload == 'function') {
         var existing = window.onload
         window.onload = function() {
            existing();
            f();
         }
      } else {
         window.onload = f;
      }
    }
}