function $(id) {
     return document.getElementById(id);
}

function rozmiar() {
height1 = $('srodek').offsetHeight;
height2 = $('srodek_lewa').offsetHeight;
height3 = $('srodek_prawa').offsetHeight;
height4 = $('text_lewa').offsetHeight;
//alert(height1+" "+height2+" "+height3+" "+height4);
$('text_lewa').style.height = (height1-40)+"px";
}