/*------------------------------------------------------------------------------

	img rollover

------------------------------------------------------------------------------*/



	window.onload = initRollovers;

	

	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);

				}

			}

		}

	}