ua = navigator.userAgent.toLowerCase();
uv = parseInt(navigator.appVersion);
if(ua.indexOf('opera') != -1 && uv >= 4){browser = 'OP'}
else if(ua.indexOf('msie') != -1 && uv >= 4){browser = 'IE'}
else if(uv == 4){browser = 'NN4'}
else if(uv >= 5){browser = 'NN6'}

function Reagiere(e)
{
 if(browser == 'IE'){ x = window.event.x-27; y = window.event.y+15;}
 else if(browser == 'NN6') { x = e.clientX-27; y = e.clientY+15;}
 else{ x = e.x-27; y = e.y+15; }

 id = 'FolgeDerMaus';
 if(browser == 'OP'){document.getElementById(id).style.left = x;}
 else if(browser == 'IE'){document.all[id].style.left = x+'px';}
 else if(browser == 'NN4'){document[id].left = x;}
 else if(browser == 'NN6')
        {document.getElementById(id).style.left = x+'px';}

 if(browser == 'OP'){document.getElementById(id).style.top = y;}
 else if(browser == 'IE'){document.all[id].style.top = y+'px';}
 else if(browser == 'NN4'){document[id].top = y;}
 else if(browser == 'NN6')
        {document.getElementById(id).style.top = y+'px';}
}

if(document.captureEvents)
{document.captureEvents(Event.MOUSEMOVE);}
document.onmousemove = Reagiere;