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

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);
      }
    }
  }
}


// tblank
function tblank() {
  var node_a = document.getElementsByTagName('a');
  for (var i in node_a) {
    if (node_a[i].className == 'blank') {
      node_a[i].onclick = function() {
        window.open(this.href, '', '');
        return false;
      };
    }
  }
};


// addLoadEvent
function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

addLoadEvent(initRollovers);
addLoadEvent(tblank);