export ICS file from KIT Webinscribe. paste into web console

compiled

var a="BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//phiresky.de//tools\n",b=$("table.piTable>tbody").children;
for(i=0;i<b.length;i++)var c=b[i].children,d=c[0].textContent.trim(),e=c[1].textContent,f=/Tutorium (..) ([-0-9:]+) (.*)/.exec(c[2].textContent.trim()),g=f[1],h=f[2],k=f[3],g=["Mo","Di","Mi","Do","Fr"].indexOf(g),h=/(..):(..)-(..):(..)/.exec(h),l="201410"+(27+g)+"T"+h[1]+h[2]+"00",m="201410"+(27+g)+"T"+h[3]+h[4]+"00",a=a+("BEGIN:VEVENT\nLOCATION:"+k+"\nSUMMARY:Tutorium für "+d.replace(/,/g,"\\,")+"\nDESCRIPTION:"+e+"\nDTSTART:"+l+"\nDTEND:"+m+"\nRRULE:FREQ=WEEKLY;COUNT=16\nEND:VEVENT\n");
var a=a+"END:VCALENDAR\n",n=document.body.appendChild(document.createElement("a"));n.href=URL.createObjectURL(new Blob([a],{type:"text/calendar"}));n.download="Tutorien WS2014 "+$("h3").textContent.match(/.{6}(.*)/)[1]+".ics";n.click();

webinscribe2ics.js

var out = "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//phiresky.de//tools\n",
    t = $("table.piTable>tbody").children,
    month = "201410",
    startday = 27
for (i = 0; i < t.length; i++) {
    var e = t[i].children,
        name = e[0].textContent.trim(),
        tutor = e[1].textContent,
        regex = /Tutorium (..) ([-0-9:]+) (.*)/.exec(e[2].textContent.trim()),
        wd = regex[1],
        zeit = regex[2],
        raum = regex[3],
        wd = ["Mo", "Di", "Mi", "Do", "Fr"].indexOf(wd),
        zeit = /(..):(..)-(..):(..)/.exec(zeit),
        start = month + (startday + wd) + "T" + zeit[1] + zeit[2] + "00",
        end = month + (startday + wd) + "T" + zeit[3] + zeit[4] + "00";
    out += "BEGIN:VEVENT"+
      "\nLOCATION:" + raum + 
      "\nSUMMARY:Tutorium für " + name.replace(/,/g, "\\,") + 
      "\nDESCRIPTION:" + tutor + 
      "\nDTSTART:" + start + 
      "\nDTEND:" + end + 
      "\nRRULE:FREQ=WEEKLY;COUNT=16\nEND:VEVENT\n";
};
out += "END:VCALENDAR\n";
var a = document.body.appendChild(document.createElement("a"));
a.href = URL.createObjectURL(new Blob([out], {type: "text/calendar"}));
a.download = "Tutorien WS2014 " + $("h3").textContent.match(/.{6}(.*)/)[1] + ".ics";
a.click();