/*
	Standards Compliant Rollover Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
*/

function init() {
	initRollovers();
	buttons();
}

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}
function buttons() {
  var inputs = document.getElementsByTagName("input");
  var i=0;
  for (i=0; i<inputs.length; i++) {
    if(inputs[i].getAttribute('type') == 'image') {
      var image = inputs[i];
      image.offImage = new Image();
      image.offImage.src = image.src;
      image.onImage = new Image();
      image.onImage.imageElement = image;
      if (navigator.userAgent.toLowerCase().indexOf('safari') != - 1) {
        image.onmouseover = function() { this.src = this.onImage.src; };
        image.onfocus = function() { this.src = this.onImage.src; };
        image.onmouseout = function() { this.src = this.offImage.src; };
        image.onblur = function() { this.src = this.offImage.src; };
      } else {
        image.onImage.onload = function() {
        this.imageElement.onmouseover = function() { this.src = this.onImage.src; };
        this.imageElement.onfocus = function() { this.src = this.onImage.src; };
        this.imageElement.onmouseout = function() { this.src = this.offImage.src; };
        this.imageElement.onblur = function() { this.src = this.offImage.src; };
      };
    }
    image.onImage.src = image.src.replace(/_off\./, '_on.');
    }
  }
}

window.onload = init;