function Hilite(img,over)
{
var strSrc; var imgName; var imgNamePos; var dotPos; var imgExtension;
	if(window.document.images)
	{
		strSrc = img.src;
		imgNamePos = strSrc.lastIndexOf('/');
		imgName = strSrc.substr(imgNamePos + 1,strSrc.length - imgNamePos);
		dotPos = imgName.lastIndexOf('.');
		plainImgName = imgName.substr(0, dotPos);
		imgExtension = imgName.substr(dotPos+1, imgName.length);
		if (over){
			img.src = img.src.substr(0,imgNamePos+1) + plainImgName + '_over.' + imgExtension;
		}
		else{
			plainImgName = plainImgName.substr(plainImgName, plainImgName.lastIndexOf('_'));
			img.src = img.src.substr(0,imgNamePos+1) + plainImgName + '.' + imgExtension;
		}
	}
}