// this script toggles hidden blocks
function toggle( targetId )
	{
	target = document.getElementById( targetId );
	if ((!target.style.display) || (target.style.display == "none")) target.style.display = "block";
	else target.style.display = "none";
	}

// this script will "clear" the inputs
var inputArray0 = new Array('0');
var inputArray1 = new Array(0,0,0); 

function clearInput( x,y )
	{
	if( eval( "inputArray"+x+"["+y+"]" ) == 0 )
		{
		eval( "inputArray"+x+"["+y+"] = 1" );	
		document.forms[x].elements[y].value = '';
		}
	}

function showComments( peekaboo )
	{
	if( peekaboo == 'show' )
		{
		document.getElementById('comments').style.display = "block";
		document.getElementById('commentsFrame').style.visibility = "visible";
		}
	else
		{
		parent.document.getElementById('comments').style.display = "none";
		parent.document.getElementById('commentsFrame').style.visibility = "hidden";
		document.location = 'blank.html';
		}	
	}
	
function checkCommentsForm( )
	{
	pass = 1;
	if( document.forms['commentsForm'].elements['comment'].value == '' ) {
		alert('...your comments?');
		pass = 0;
		}
	if( document.forms['commentsForm'].elements['username'].value == '' ) {
		alert('You must supply a name.');
		pass = 0;
		}
	if( ( document.forms['commentsForm'].elements['email'].value == '' ) &&  ( document.forms['commentsForm'].elements['url'].value == '' ) ) {
		alert('You must supply an e-mail address or a URL.');
		pass = 0;
		}
	if( pass == 1 ) return true;
	else return false;
	}
	
// open in this/new window script
// source: Dean Allen's Textism http://www.textism.com
function targetWin(linktarget)
	{
	if (linktarget) 
		{
		where = "_blank";
		document.images['targetnew1'].src='images/window_b.gif';
		document.images['targetnew2'].src='images/window_c.gif';
		}
	else 
		{
		where = "_self";
		document.images['targetnew1'].src='images/window_a.gif';
		document.images['targetnew2'].src='images/window_d.gif';
		}
	for (var i=0; i<(document.links.length); i++)
		{
		document.links[i].target = where;
		}
	}

	
// stylesheet switcher scripts begins here
// sourec: A List Apart http://www.alistapart.com/stories/alternate/ 
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

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("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

// end styleswitcher scripts