/* Functions for ListULike menus, Dynamic Drive DD Tab Menus, Suckerfish Menus */


/* Function for ListULike menus to work in IE.
* Must have a <ul class="___" id="nav"> statement in the page calling startList
* or get "Error on Page" in bottom of IE screen (error message "Object Required")
*/
  
startList = function() {
  if (document.all && document.getElementById) {
    navRoot = document.getElementById("nav");
		if (navRoot) {
	    node = navRoot.childNodes[1];
			for (i=0; i<navRoot.childNodes.length; i++) {
	      node = navRoot.childNodes[i];
	      if (node.nodeName=="LI") {
	        node.onmouseover=function() {
	          this.className+=" over";
	          }
	        node.onmouseout=function() {
	          this.className=this.className.replace(" over", "");
          }
      }
    }
	}
	/* allow for a 2nd menu */
  navRoot = document.getElementById("nav2");
	if (navRoot) {
      node = navRoot.childNodes[1];
      for (i=0; i<navRoot.childNodes.length; i++) {
        node = navRoot.childNodes[i];
        if (node.nodeName=="LI") {
          node.onmouseover=function() {
            this.className+=" over";
            }
          node.onmouseout=function() {
            this.className=this.className.replace(" over", "");
            }
        }
      }
	}
	
	/* allow for a 3rd menu */
    navRoot = document.getElementById("nav3");
	if (navRoot) {
      node = navRoot.childNodes[1];
      for (i=0; i<navRoot.childNodes.length; i++) {
        node = navRoot.childNodes[i];
        if (node.nodeName=="LI") {
          node.onmouseover=function() {
            this.className+=" over";
            }
          node.onmouseout=function() {
            this.className=this.className.replace(" over", "");
            }
        }
      }
	}
	
  }
}
window.onload=startList;



/* ======================================================== */
/* Suckerfish Menu, multi-browser, accessible, multiple level horizontal 
drop down menu http://www.htmldog.com/articles/suckerfish/dropdowns/
GL modified from original to use "sfnav" instead of "nav" and navTemp (get IE errors without test) */

sfHover = function() {
	var sfEls, sfLength=0;
	var navTemp = document.getElementById("sfnav"); 
	if (navTemp) { sfEls = navTemp.getElementsByTagName("LI"); sfLength = sfEls.length; }
	for (var i=0; i<sfLength; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);
/* makes it function for IE & FF (messes up FF)
if (window.addEventListener)
  window.addEventListener("load", sfHover, false)
else if (window.attachEvent)
  window.attachEvent("onload", sfHover)
else if (document.getElementById)
  window.onload=sfHover
*/

/* end of Suckerfish script */

/* start of script to automatically zebra-stripe table rows. Paramaters specify colors of stripes */
  // this function is needed to work around 
  // a bug in IE related to element attributes
  function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
  }   

 function stripe(id) {

    // the flag we'll use to keep track of 
    // whether the current row is odd or even
    var even = false;
  
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    var evenColor = arguments[1] ? arguments[1] : "#fff";
    var oddColor = arguments[2] ? arguments[2] : "#eee";
  
    // obtain a reference to the desired table
    // if no such table exists, abort
    var table = document.getElementById(id);
    if (! table) { return; }
    
    // by definition, tables can have more than one tbody
    // element, so we'll have to get the list of child
    // &lt;tbody&gt;s 
    var tbodies = table.getElementsByTagName("tbody");

    // and iterate through them...
    for (var h = 0; h < tbodies.length; h++) {
    
     // find all the &lt;tr&gt; elements... 
      var trs = tbodies[h].getElementsByTagName("tr");
      
      // ... and iterate through them
      for (var i = 0; i < trs.length; i++) {

        // avoid rows that have a class attribute
        // or backgroundColor style
        if (! hasClass(trs[i]) &&
            ! trs[i].style.backgroundColor) {
 		  
          // get all the cells in this row...
          var tds = trs[i].getElementsByTagName("td");
        
          // and iterate through them...
          for (var j = 0; j < tds.length; j++) {
        
            var mytd = tds[j];

            // avoid cells that have a class attribute
            // or backgroundColor style
            if (! hasClass(mytd) &&
                ! mytd.style.backgroundColor) {
        
              mytd.style.backgroundColor =
                even ? evenColor : oddColor;
            
            }
          }
        }
        // flip from odd to even, or vice-versa
        even =  ! even;
      }
    }
  }