// BlogAd Pricing Calculator
// Copyright 2005 Dan Amato, All Rights Reserved
function week(el,dad,dinc,growth) {
 var ppv=dinc/dad;
 monthly(el,dad,dinc,growth);
 var total=(dinc*7) / .8;
 el.weekly.value="$"+total.toFixed(2);
}

function newdad(dad,growth) {
 return( ( parseInt(dad) + (dad*(growth/100))  ));
}

function fprice(ppv,dad) {
 return( ((parseFloat(ppv*dad))*30)/.8 );
}

function monthly(el,dad,dinc,growth) {
 var ppv=dinc/dad;  // 10/1000 .01
 month3(el,dad,dinc,growth);
 var total=fprice(ppv,newdad(dad,growth));
 el.month.value="$"+total.toFixed(2);
}

function month3(el,dad,dinc,growth) {
 var ppv=dinc/dad;
 var dad1=newdad(dad,growth);
 var dad2=newdad(dad1,growth);
 var dad3=newdad(dad2,growth);
 var total=fprice(ppv,dad1)+fprice(ppv,dad2)+fprice(ppv,dad3);
 el.month3.value="$"+total.toFixed(2);
}