function calc_total_sum() {
	
	var total_tax = parseFloat(document.getElementById("input_cart_moms").value);
	var total_ex_tax = parseFloat(document.getElementById("input_cart_exklmoms").value);
	var shipping_tax = parseFloat(document.getElementById("input_fraktavgift_moms").value);
	var payment_tax = parseFloat(document.getElementById("input_betalavgift_moms").value);
	var shipping_price = parseFloat(document.getElementById("input_fraktavgift").value);
	var payment_price = parseFloat(document.getElementById("input_betalavgift").value);
	var tax = parseFloat(document.getElementById("input_cart_moms").value);
	
	var moms_summa = parseFloat(shipping_tax * shipping_price) + parseFloat(payment_tax * payment_price) + parseFloat(total_tax); 
	var total  = parseFloat(document.getElementById("input_cart_total").value) + parseFloat(document.getElementById("input_fraktavgift").value) + parseFloat(document.getElementById("input_betalavgift").value);
	var exkl_moms_summa = total - moms_summa;
	
	document.getElementById("auriga_amount").value = total*100;
	document.getElementById("auriga_vat").value = moms_summa*100;
	
	document.getElementById("moms_summa").innerHTML = moms_summa.toFixed(2)+" kr";
	document.getElementById("exkl_moms_summa").innerHTML = exkl_moms_summa.toFixed(2)+" kr";
	document.getElementById("totalsumma").innerHTML = total.toFixed(2) + " kr";	
	
}

function validate_search() {
    
    var str = document.getElementById("input_search").value;
    
    if (str == "") {
        alert("Du måste fylla i ett sökord");
        return false;
    } else if (str.length < 3) {
        alert("Ditt sökord måste vara minst 3 tecken");
        return false;
    } else {
        return true;
    }
    
}