function changeScreenSize(w,h)
{
window.resizeTo( w,h )
}
    function berechnen(x,y)
    {
    var a2=Number(x.value)/100*3.5
       var a3 = (Math.round(a2 * 100) / 100).toString();
       a3 += (a3.indexOf('.') == -1)? '.00' : '00';
       var pa = a3.indexOf('.');
       var a=(a3.substring(0, pa) + ',' + a3.substring(pa+1, pa+3));


    var b2=Number(x.value)/100*1.1
       var b3 = (Math.round(b2 * 100) / 100).toString();
       b3 += (b3.indexOf('.') == -1)? '.00' : '00';
       var pb = b3.indexOf('.');
       var b=(b3.substring(0, pb) + ',' + b3.substring(pb+1, pb+3));


    var c2=Number(x.value)/100*3*1.2
       var c3 = (Math.round(c2 * 100) / 100).toString();
       c3 += (c3.indexOf('.') == -1)? '.00' : '00';
       var pc = c3.indexOf('.');
       var c=(c3.substring(0, pc) + ',' + c3.substring(pc+1, pc+3));

    var d2=Number(x.value)/100*1.5*1.2
       var d3 = (Math.round(d2 * 100) / 100).toString();
       d3 += (d3.indexOf('.') == -1)? '.00' : '00';
       var pd = d3.indexOf('.');
       var d=(d3.substring(0, pd) + ',' + d3.substring(pd+1, pd+3));


    var e2=Number(x.value)+a2+b2+c2+d2
       var e3 = (Math.round(e2 * 100) / 100).toString();
       e3 += (e3.indexOf('.') == -1)? '.00' : '00';
       var pe = e3.indexOf('.');
       var e=(e3.substring(0, pe) + ',' + e3.substring(pe+1, pe+3));


    var f2=e2-Number(y.value)
       var f3 = (Math.round(f2 * 100) / 100).toString();
       f3 += (f3.indexOf('.') == -1)? '.00' : '00';
       var pf = f3.indexOf('.');
       var f=(f3.substring(0, pf) + ',' + f3.substring(pf+1, pf+3));

    var g2=f2/100*0.8
       var g3 = (Math.round(g2 * 100) / 100).toString();
       g3 += (g3.indexOf('.') == -1)? '.00' : '00';
       var pg = g3.indexOf('.');
       var kst=(g3.substring(0, pg) + ',' + g3.substring(pg+1, pg+3));

    var h2=f2/100*1.44
       var h3 = (Math.round(h2 * 100) / 100).toString();
       h3 += (h3.indexOf('.') == -1)? '.00' : '00';
       var ph = h3.indexOf('.');
       var h=(h3.substring(0, ph) + ',' + h3.substring(ph+1, ph+3));

    var i2=f2/100*2
       var i3 = (Math.round(i2 * 100) / 100).toString();
       i3 += (i3.indexOf('.') == -1)? '.00' : '00';
       var pi = i3.indexOf('.');
       var i=(i3.substring(0, pi) + ',' + i3.substring(pi+1, pi+3));

    var j2=f2+g2+h2+i2
       var j3 = (Math.round(j2 * 100) / 100).toString();
       j3 += (j3.indexOf('.') == -1)? '.00' : '00';
       var pj = j3.indexOf('.');
       var j=(j3.substring(0, pj) + ',' + j3.substring(pj+1, pj+3));

        
    var n=300;
    var g=0.055/12;
    var t1=Math.pow((1+g),n);
    var k2=(j2*t1*g)/(t1-1);
    
    var k3 = (Math.round(k2 * 100) / 100).toString();
       k3 += (k3.indexOf('.') == -1)? '.00' : '00';
       var pk = k3.indexOf('.');
       var k=(k3.substring(0, pk) + ',' + k3.substring(pk+1, pk+3));

    document.immorechner1.gest.value=a;
    document.immorechner1.gbe.value=b;
    document.immorechner1.makler.value=c;
    document.immorechner1.notar.value=d;
    document.immorechner1.kaufpreis1.value=e;

    document.immorechner1.bedarf.value=f;
    document.immorechner1.kst.value=kst;
    document.immorechner1.hypothek.value=h;
    document.immorechner1.bankgeb.value=i;
    document.immorechner1.bedarf1.value=j;
    document.immorechner1.aufwandm.value=k;
     }