// rollover

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, '_down'+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('_down'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

window.onload = initRollovers;

function event_close() {
	window.open("about:blank","_self").close();
}

function event_open(url,windowname,width,height) {
 var features="location=no, menubar=no, status=yes, scrollbars=yes, resizable=yes, toolbar=no";
 if (width) {
  if (window.screen.width > width)
   features+=", left="+(window.screen.width-width)/2;
  else width=window.screen.width;
  features+=", width="+width;
 }
 if (height) {
  if (window.screen.height > height)
   features+=", top="+(window.screen.height-height)/2;
  else height=window.screen.height;
  features+=", height="+height;
 }
 window.open(url,windowname,features);
}