function changeImages() {

     if (document.images && (preloadFlag == true)) {

          for (var i=0; i<changeImages.arguments.length; i+=2) {

               document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
          }
     }
}

function newImage(ovrSrc) {

     if (document.images) {
          img = new Image();
          img.src = ovrSrc;
          return img;
     }
}

var preloadFlag = false;

function preloadImages() {

     if (document.images) {

		home_o = newImage("images/home_o.gif");
		
		citrus_o = newImage("images/citrus_o.gif");
		
		about_o = newImage("images/about_o.gif");
		
		personal_o = newImage("images/personal_o.gif");
		
		corporate_o = newImage("images/corporate_o.gif");
		
		community_o = newImage("images/community_o.gif");
		
		contact_o = newImage("images/contact_o.gif");
		
		//top_o = newImage("images/top_o.gif");
		
		preloadFlag = true;
	}
}