// JavaScript Document

/*
	For functions getElementsByClassName, addClassName, and removeClassName
	Copyright Robert Nyman, http://www.robertnyman.com
	Free to use if this text is included
*/

 function doSel(obj)
 {
     for (i = 1; i < obj.length; i++)
        if (obj[i].selected == true)
           eval(obj[i].value);
}



function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function getElementsByClassName(className, tag, elm){
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++){
		current = elements[i];
		if(testClass.test(current.className)){
			returnElements.push(current);
		}
	}
	return returnElements;
}

function addClassName(elm, className){
    var currentClass = elm.className;
    if(!new RegExp(("(^|\\s)" + className + "(\\s|$)"), "i").test(currentClass)){
        elm.className = currentClass + ((currentClass.length > 0)? " " : "") + className;
    }
    return elm.className;
}

function removeClassName(elm, className){
    var classToRemove = new RegExp(("(^|\\s)" + className + "(\\s|$)"), "i");
    elm.className = elm.className.replace(classToRemove, "").replace(/^\s+|\s+$/g, "");
    return elm.className;
}

function makeTheTableHeadsHighlight() {
	// get all the td's in the heart of the table...
	var table = document.getElementById('matrix');
	var tbody = table.getElementsByTagName('tbody');
	var tbodytds = table.getElementsByTagName('td');
	
	// and loop through them...
	for (var i=0; i<tbodytds.length; i++) {
	
	// take note of their default class name
		tbodytds[i].oldClassName = tbodytds[i].className;
		
	// when someone moves their mouse over one of those cells...
		tbodytds[i].onmouseover = function() {
	
	// attach 'on' to the pointed cell
			addClassName(this,'on');
			
	// attach 'on' to the th in the thead with the same class name
			var topheading = getElementsByClassName(this.oldClassName,'th',table);
			addClassName(topheading[0],'on');
			
	// attach 'on' to the far left th in the same row as this cell
			var row = this.parentNode;
			var rowheading = row.getElementsByTagName('th')[0];
			addClassName(rowheading,'on');
		}
	
	// ok, now when someone moves their mouse away, undo everything we just did.
	
		tbodytds[i].onmouseout = function() {
	
	// remove 'on' from this cell
			removeClassName(this,'on');
			
	// remove 'on' from the th in the thead
			var topheading = getElementsByClassName(this.oldClassName,'th',table);
			removeClassName(topheading[0],'on');

	// remove 'on' to the far left th in the same row as this cell
			var row = this.parentNode;
			var rowheading = row.getElementsByTagName('th')[0];
			removeClassName(rowheading,'on');
		}
	}
}
addLoadEvent(makeTheTableHeadsHighlight);


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}