// form Validation Code

function validate(form){
	document.getElementById("namewarn").style.visibility = "hidden";
	document.getElementById("mailwarn").style.visibility = "hidden";
	document.getElementById("commentwarn").style.visibility = "hidden";

	
	if(document.getElementById("sname").value == ""){
	document.getElementById("namewarn").style.visibility = "visible";
	return false;
	}
	
	if(document.getElementById("email").value == ""){
	document.getElementById("mailwarn").style.visibility = "visible";
	return false;
	}	
	
	if(document.getElementById("comments").value == ""){
	document.getElementById("commentwarn").style.visibility = "visible";
	return false;
	}		
	
	return true;
}

// mailing list validation

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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

// zebra tables

  function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
  }   

 function stripe(id) {

    var even = false;
    var evenColor = arguments[1] ? arguments[1] : "#fff";
    var oddColor = arguments[2] ? arguments[2] : "#eee";
    var table = document.getElementById(id);
    if (! table) { return; }

    var tbodies = table.getElementsByTagName("tbody");

    for (var h = 0; h < tbodies.length; h++) {

      var trs = tbodies[h].getElementsByTagName("tr");

      for (var i = 0; i < trs.length; i++) {

	    if (!hasClass(trs[i]) && ! trs[i].style.backgroundColor) {

          var tds = trs[i].getElementsByTagName("td");

          for (var j = 0; j < tds.length; j++) {
        
            var mytd = tds[j];

	        if (! hasClass(mytd) && ! mytd.style.backgroundColor) {
        
		      mytd.style.backgroundColor = even ? evenColor : oddColor;
              
            }
          }
        }

        even =  ! even;
      }
    }
  }
 
 // rollovers

function soopaSetup() {
	var img, sh, sn, sd
	for (var i = 0; (img = document.images[i]); i++) {
		if (img.getAttribute) {

			sn = img.getAttribute("src");
			sh = img.getAttribute("hsrc");
			sd = img.getAttribute("dsrc");

			if (sn != "" && sn != null) {
				img.n = new Image();
				img.n.src = img.src;
			
				if (sh != "" && sh != null) {
					img.h = new Image();
					img.h.src = sh;
					img.onmouseover = soopaSwapOn
					img.onmouseout  = soopaSwapOff
				}

				if (sd != "" && sd != null) {
					img.d = new Image();
					img.d.src = sd;
					img.onmousedown = soopaSwapDown
				}
			}
		}
	}
}

function soopaSwapOn() {
	this.src = this.h.src;
}

function soopaSwapOff() {
	this.src  = this.n.src;
}

function soopaSwapDown() {
	this.src  = this.d.src;
	this.temp = typeof(document.onmouseup) != 'undefined' && typeof(document.onmouseup) != 'unknown' ? document.onmouseup : "";
	soopaSwapUp.img = this;
	document.onmouseup = soopaSwapUp;
}

function soopaSwapUp() {
	var ths = soopaSwapUp.img;
	ths.src = ths.n.src;
	if (ths.temp) document.onmouseup = ths.temp;
}

// load stuff

window.onload=function(){
stripe('zebra', '#eef2f4', '#fff');
stripe('zebra2', '#eef2f4', '#fff');
stripe('zebra3', '#eef2f4', '#fff');
soopaSetup();
}