/* --------------------------------------------------
Weparish.co.uk

javascript file - 01/01/2008

written by Nick Fox

MADE IN THE U.K.
----------------------------------------------------- */
window.onload = runall;
function runall(){
	fixh();
	Fat.fade_all();
}
function fixh()
	{
		if (!(document.getElementById('centre')) )
			{
				alert("centre div does not exist");
				return false;
			} 
		else
			{
				var lh = document.getElementById('leftnav').offsetHeight;
				var rh = document.getElementById('centre').offsetHeight;
				var nh = Math.max(lh, rh);
				document.getElementById('centre').style.height = nh+"px";
				document.getElementById('leftnav').style.height = nh+"px";
				
				//alert("divs resized. left height =" + lh + " right height = " + rh + " nominal height = " + nh);
			}
	}


/*  -------------------------- limit characters in a textbox, for comments-----------------------------------------------
http://javascript.internet.com  by: Steve | http://jsmadeeasy.com/ */
function getObject(obj) {
  var theObj;
  if(document.all) {
	if(typeof obj=="string") {
	  return document.all(obj);
	} else {
	  return obj.style;
	}
  }
  if(document.getElementById) {
	if(typeof obj=="string") {
	  return document.getElementById(obj);
	} else {
	  return obj.style;
	}
  }
  return null;
}

function toCount(entrance,exit,text,characters) {
  var entranceObj=getObject(entrance);
  var exitObj=getObject(exit);
  var length=characters - entranceObj.value.length;
  if(length <= 0) {
	length=0;
	text='<span class="disable"> '+text+' </span>';
	entranceObj.value=entranceObj.value.substr(0,characters);
  }
  exitObj.innerHTML = text.replace("{CHAR}",length);
}
/* HTML for this code

<div id="overDiv" style="position:absolute; visibility:hidden; z-index:1000;"></div>
<form action="#" method="post">
<table align="center" border="0" cellspacing="1" cellpadding="5">
  <tr>
    <td align="right"><span class="options">Field Name</span></td>
    <td class="2">
      <input type="text" id="eBann" name="bannerURL" maxlength="100" size="60" onKeyUp="toCount('eBann','sBann','{CHAR} characters left',100);">
      <br>
      <span id="sBann" class="minitext">100 characters left.</span>
    </td>
  </tr>
</table>
</form>


/* ---------------------------- hide error log alert on text change ---------------------------*/
function hideupdate(){
	if (document.getElementById("error_alert")){document.getElementById("error_alert").style.display = "none";}
}
/* ---------------------------- Fade anything Code ------------------------------------------ */
// @name      The Fade Anything Technique
// @namespace http://www.axentric.com/aside/fat/
// @version   1.0-RC1
// @author    Adam Michela

var Fat = {
	make_hex : function (r,g,b) 
	{
		r = r.toString(16); if (r.length == 1) r = '0' + r;
		g = g.toString(16); if (g.length == 1) g = '0' + g;
		b = b.toString(16); if (b.length == 1) b = '0' + b;
		return "#" + r + g + b;
	},
	fade_all : function ()
	{
		var a = document.getElementsByTagName("*");
		for (var i = 0; i < a.length; i++) 
		{
			var o = a[i];
			var r = /fade-?(\w{3,6})?/.exec(o.className);
			if (r)
			{
				if (!r[1]) r[1] = "";
				if (o.id) Fat.fade_element(o.id,null,null,"#"+r[1]);
			}
		}
	},
	fade_element : function (id, fps, duration, from, to) 
	{
		if (!fps) fps = 30;
		if (!duration) duration = 3000;
		if (!from || from=="#") from = "#FFFF33";
		if (!to) to = this.get_bgcolor(id);

		var frames = Math.round(fps * (duration / 1000));
		var interval = duration / frames;
		var delay = interval;
		var frame = 0;

		if (from.length < 7) from += from.substr(1,3);
		if (to.length < 7) to += to.substr(1,3);

		var rf = parseInt(from.substr(1,2),16);
		var gf = parseInt(from.substr(3,2),16);
		var bf = parseInt(from.substr(5,2),16);
		var rt = parseInt(to.substr(1,2),16);
		var gt = parseInt(to.substr(3,2),16);
		var bt = parseInt(to.substr(5,2),16);

		var r,g,b,h;
		while (frame < frames)
		{
			r = Math.floor(rf * ((frames-frame)/frames) + rt * (frame/frames));
			g = Math.floor(gf * ((frames-frame)/frames) + gt * (frame/frames));
			b = Math.floor(bf * ((frames-frame)/frames) + bt * (frame/frames));
			h = this.make_hex(r,g,b);

			setTimeout("Fat.set_bgcolor('"+id+"','"+h+"')", delay);

			frame++;
			delay = interval * frame; 
		}
		setTimeout("Fat.set_bgcolor('"+id+"','"+to+"')", delay);
	},
	set_bgcolor : function (id, c)
	{
		var o = document.getElementById(id);
		o.style.backgroundColor = c;
	},
	get_bgcolor : function (id)
	{
		var o = document.getElementById(id);
		while(o)
		{
			var c;
			if (window.getComputedStyle) c = window.getComputedStyle(o,null).getPropertyValue("background-color");
			if (o.currentStyle) c = o.currentStyle.backgroundColor;
			if ((c != "" && c != "transparent") || o.tagName == "BODY") { break; }
			o = o.parentNode;
		}
		if (c == undefined || c == "" || c == "transparent") c = "#FFFFFF";
		var rgb = c.match(/rgb\s*\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)/);
		if (rgb) c = this.make_hex(parseInt(rgb[1]),parseInt(rgb[2]),parseInt(rgb[3]));
		return c;
	}
}