var defaultBackgroundColor = "purple";
var currentBackgroundColor;

function setBackgroundColor(color) {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      /*a.disabled = !(a.getAttribute("title") == color);
      if(a.getAttribute("title") == color)
        alert(a.getAttribute("title"));*/
      
      a.disabled = true;
      if(a.getAttribute("title") == color) a.disabled = false;
    }
  }
  
  currentBackgroundColor = color;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

/*window.onload = function(e) {
  var cookie = readCookie("backgroundColor");
  var bgColor = cookie ? cookie : defaultBackgroundColor;
  setBackgroundColor(bgColor);
}*/

window.onunload = function(e) {
  createCookie("backgroundColor", currentBackgroundColor, 365);
}

var cookie = readCookie("backgroundColor");
var bgColor = cookie ? cookie : defaultBackgroundColor;
setBackgroundColor(bgColor);

///////////////////////////////////////////////////////////////////////////

/*This stuff makes the onMouseOver menu work in IE*/
startList = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("nav");
		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;

///////////////This does form validation for contact.php /////


function valbutton(thisform) {

  valid = true;

    if ( document.contact.realname.value == "" )
    {
        alert ( "Please fill in the 'Name' box." );
        valid = false;
	document.contact.realname.focus();
	
    }
    else if ( document.contact.email.value == "" )
    {
        alert ( "Please fill in the 'Email' box." );
	valid = false;
	document.contact.email.focus();
    }
    else if ( document.comments.realname.value == "" )
    {
        alert ( "Please fill in the 'Comments' box." );
        valid = false;
	document.contact.comments.focus();
    }
    else {
	thisform.submit(); // this line submits the form after validation
	}
}