// JavaScript Document

	// start up script	
	var resources = new Array();
	var preloading = true;
	resources[0] = "Resources/home.jpg";
	resources[1] = "Resources/aboutus.jpg";
	resources[2] = "Resources/consultingservices.jpg";
	resources[3] = "Resources/ordernow.jpg";
	resources[4] = "Resources/contactus.jpg"
	resources[10] = "Resources/homeh.jpg";
	resources[11] = "Resources/aboutush.jpg";
	resources[12] = "Resources/consultingservicesh.jpg";
	resources[13] = "Resources/ordernowh.jpg";
	resources[14] = "Resources/contactush.jpg";
	
	var assoc = new Array();

	// window.onload = function() { preLoadPage(); };

	// utility functions
	function preloadImages()
	{
	  if(document.images)
	  {
		if(!document.imageArray) document.imageArray = new Array();
		var i,j = document.imageArray.length, args = preloadImages.arguments;
		for(i=0; i<args.length; i++)
		{
		  if (args[i].indexOf("#")!=0)
		  {
			document.imageArray[j] = new Image;
			document.imageArray[j++].src = args[i];
		  }
		}
	  }
	  return j;
	}

	function preLoadPage()
	{	
		// preload images 
		var i;
		for (i = 0; i <= 4; i++)
			preloadImages(resources[i], resources[i+10]);
	  	preloading = false;

		// set up event handlers
		$('home').onmouseover = function() { highlightButton('home', 0); };
		$('home').onmouseout  = function() { restoreButton('home', 0); };
		$('aboutus').onmouseover = function() { highlightButton('aboutus', 1); };
		$('aboutus').onmouseout  = function() { restoreButton('aboutus', 1); };
		$('consultingservices').onmouseover = function() { highlightButton('consultingservices', 2); };
		$('consultingservices').onmouseout  = function() { restoreButton('consultingservices', 2); };
		$('ordernow').onmouseover = function() { highlightButton('ordernow', 3); };
		$('ordernow').onmouseout  = function() { restoreButton('ordernow', 3); };
		$('contactus').onmouseover = function() { highlightButton('contactus', 4); };
		$('contactus').onmouseout  = function() { restoreButton('contactus', 4); };
	}
		
	function switchImage(imgName, imgSrc) 
	{
	  if (document.images)
	  {
		if (imgSrc != "none")
		{
		  document.images[imgName].src = imgSrc;
		}
	  }
	}
	
	function highlightButton(elem, no) {
		if (!preloading) {
			resources[no] = document.images[elem+'img'].src;
			switchImage(elem+'img', resources[10+no]);
		}
	}
	
	function restoreButton(elem, no) {
		if (!preloading) {
			switchImage(elem+'img', resources[no]);
		}
	}

function FP_swapImg() {//v1.0
 var doc=document,args=arguments,elm,n; doc.$imgSwaps=new Array(); for(n=2; n<args.length;
 n+=2) { elm=FP_getObjectByID(args[n]); if(elm) { doc.$imgSwaps[doc.$imgSwaps.length]=elm;
 elm.$src=elm.src; elm.src=args[n+1]; } }
}

function FP_preloadImgs() {//v1.0
 var d=document,a=arguments; if(!d.FP_imgs) d.FP_imgs=new Array();
 for(var i=0; i<a.length; i++) { d.FP_imgs[i]=new Image; d.FP_imgs[i].src=a[i]; }
}

function FP_getObjectByID(id,o) {//v1.0
 var c,el,els,f,m,n; if(!o)o=document; if(o.getElementById) el=o.getElementById(id);
 else if(o.layers) c=o.layers; else if(o.all) el=o.all[id]; if(el) return el;
 if(o.id==id || o.name==id) return o; if(o.childNodes) c=o.childNodes; if(c)
 for(n=0; n<c.length; n++) { el=FP_getObjectByID(id,c[n]); if(el) return el; }
 f=o.forms; if(f) for(n=0; n<f.length; n++) { els=f[n].elements;
 for(m=0; m<els.length; m++){ el=FP_getObjectByID(id,els[n]); if(el) return el; } }
 return null;
}