// JavaScript Document

function stringReverse(textString) {
   if (!textString) return '';
   var revString='';
   for (i = textString.length-1; i>=0; i--)
       revString+=textString.charAt(i)
   return revString;
}

function showEM(userName, emServer)	{
/*
 * 	The showEM() function displays a link to the user's e-mail address.
 * The userName and e-mail server name are entered in reverse order
 * to thwart e-mail harvesting programs.
 */
		userName = stringReverse(userName);
		emServer = stringReverse(emServer);
		var emLink = userName + "@" + emServer;
		document.write("<a href='mailto:" + emLink + "'>");
		document.write(emLink);
		document.write("</a");
}

function showDate() {
   thisDate = new Date();
   var thisWDay=thisDate.getDay();
   var thisDay=thisDate.getDate();
   var thisMonth=thisDate.getMonth();
   var thisYear=thisDate.getFullYear();
   var mName = new Array("January", "February", "March", "April", "May", 
       "June", "July", "August", "September", "October","November", "December");
   var wdName = new Array("Sunday", "Monday", "Tuesday", "Wednesday",
       "Thursday", "Friday", "Saturday");
   return wdName[thisWDay]+", "+mName[thisMonth]+" "+thisDay+", "+thisYear;
}

  
function erikDave(id) {
  if(id == "erik" ) {
	document.getElementById("dave").style.display = "none";
    document.getElementById("erik").style.display = "";
  }
  else {
    if(id == "dave" ) {
	document.getElementById("erik").style.display = "none";
    document.getElementById("dave").style.display = "";
    }
  }
}

/**
 * @author Alexander Farkas
 * v. 1.21
 */


(function($) {
	if(!document.defaultView || !document.defaultView.getComputedStyle){ // IE6-IE8
		var oldCurCSS = jQuery.curCSS;
		jQuery.curCSS = function(elem, name, force){
			if(name === 'background-position'){
				name = 'backgroundPosition';
			}
			if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
				return oldCurCSS.apply(this, arguments);
			}
			var style = elem.style;
			if ( !force && style && style[ name ] ){
				return style[ name ];
			}
			return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);
		};
	}
	
	var oldAnim = $.fn.animate;
	$.fn.animate = function(prop){
		if('background-position' in prop){
			prop.backgroundPosition = prop['background-position'];
			delete prop['background-position'];
		}
		if('backgroundPosition' in prop){
			prop.backgroundPosition = '('+ prop.backgroundPosition;
		}
		return oldAnim.apply(this, arguments);
	};
	
	function toArray(strg){
		strg = strg.replace(/left|top/g,'0px');
		strg = strg.replace(/right|bottom/g,'100%');
		strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
		var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
		return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
	}
	
	$.fx.step. backgroundPosition = function(fx) {
		if (!fx.bgPosReady) {
			var start = $.curCSS(fx.elem,'backgroundPosition');
			
			if(!start){//FF2 no inline-style fallback
				start = '0px 0px';
			}
			
			start = toArray(start);
			
			fx.start = [start[0],start[2]];
			
			var end = toArray(fx.options.curAnim.backgroundPosition);
			fx.end = [end[0],end[2]];
			
			fx.unit = [end[1],end[3]];
			fx.bgPosReady = true;
		}
		//return;
		var nowPosX = [];
		nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
		nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];           
		fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];

	};
})(jQuery);

$(function(){
	$('#a a')
		.css( {backgroundPosition: "-0px 35px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-0px 94px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(40px 35px)"}, {duration:200, complete:function(){
				$(this).css({backgroundPosition: "-0px 35px"})
			}})
		})
});