function Lines() {
        var max = 28;
        var text = document.getElementById('f_text');
        var upp = document.getElementById('upp');
        var f_price = document.getElementById('f_price');
	upp.style.display="none";
        var wert = text.value.replace(/\r/,"").length;
        var lines = text.value.split("\n").length;
        counter = 1;
        for(i=0;i<wert;i++) {
                if(text.value.charAt(i) == "\n") {
                        counter = 0;
                }
                if(counter == max+1) {
                        text.value = text.value.substr(0,i)+"\n"+text.value.substr(i);
                        counter = 0;
                }
                counter++;
        }
        var preis = document.getElementById('preis');
        if(lines > 4) {
                preis.innerHTML = (lines-4)*0.50+5+" EUR";
                f_price.value=(lines-4)*0.50+5;
                upp.style.display="block";
        } else {
                preis.innerHTML = 5+" EUR";
                f_price.value=5;
        }
}