// JavaScript Document

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 == 'rollover') {
	    var src = aImages[i].getAttribute('src');
	    var ftype = src.substring(src.lastIndexOf('.'), src.length);
	    var hsrc = src.replace(ftype, '_roll'+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('_roll'+ftype, ftype);
		this.setAttribute('src', sTempSrc);
	    }
	}
    }
}

window.onload = initRollovers;