function Calculate()
{       //Core and RAM
        var core = parseFloat(document.frm.core.value);
        var ram = parseFloat(document.frm.ram.value);

        //Video Cards
        var wsvc = 0;
        var sli = 0;
        var high = 0;
        
        if (document.frm.ws_card.checked){wsvc = parseFloat(document.frm.ws_card.value);}
        if (document.frm.sli_card.checked){sli = parseFloat(document.frm.sli_card.value);}
        if (document.frm.high_card.checked){high = parseFloat(document.frm.high_card.value);}
        
        //Motherboards 
        var mb = parseFloat(document.frm.motherboard.value);
        
        //Harddrives
        var hdt = parseFloat(document.frm.hd_type.value);
        var hdn = parseFloat(document.frm.hd_number.value);
        var hd = hdt * hdn;
        
        //Flash-Solid State Drives
        var sst = parseFloat(document.frm.ss_type.value);
        var ssn = parseFloat(document.frm.ss_number.value);
        var ss = sst * ssn;

        //Additional Drives
        var cdrom = parseFloat(document.frm.cd_rom.value);
        var dvdrom = parseFloat(document.frm.dvd_rom.value);
        var cdrw = parseFloat(document.frm.cd_rw.value);
        var bray = parseFloat(document.frm.bray.value);
        var tape = parseFloat(document.frm.tape.value);
        var zip = parseFloat(document.frm.zip.value);
        var floppy = parseFloat(document.frm.floppy.value);


        document.getElementById('feedback').innerHTML='';

        var total = core + ram + wsvc + sli + high + mb + hd + ss + cdrom + dvdrom + cdrw + bray + tape + zip + floppy;
        document.getElementById('feedback').innerHTML = "<h1 style=\"line-height:1.5em\"> We Recommend that you have a <br /><span style=\"color:green; font-size:200%;\">" + total + "</span><br /> watt power supply</h1>";
}

function resetAll(){
document.getElementById('feedback').innerHTML ='';
}