// TAB SWAPPING FUNCTIONS
       
function swapMainContent(divID) {
       
        /* Hide all divs */
        if (document.getElementById('iphoneOverview')) { document.getElementById('iphoneOverview').style.display = 'none'; }
        if (document.getElementById('iphoneRevolutionary')) { document.getElementById('iphoneRevolutionary').style.display = 'none'; }
        if (document.getElementById('iphoneWidescreen')) { document.getElementById('iphoneWidescreen').style.display = 'none'; }
        if (document.getElementById('iphoneInternet')) { document.getElementById('iphoneInternet').style.display = 'none'; }
        if (document.getElementById('iphoneSpecifications')) { document.getElementById('iphoneSpecifications').style.display = 'none'; }
       
        /* Show selected Div */
        if (document.getElementById(divID)) { document.getElementById(divID).style.display = 'block'; }
}

function swapSubContent(divID) {
       
        /* Hide all divs */
        if (document.getElementById('iphoneQuickStart')) { document.getElementById('iphoneQuickStart').style.display = 'none'; }
        if (document.getElementById('iphoneExistingCustomer')) { document.getElementById('iphoneExistingCustomer').style.display = 'none'; }
        if (document.getElementById('iphoneEligibility2')) { document.getElementById('iphoneEligibility2').style.display = 'none'; }
        if (document.getElementById('iphoneNew2O2')) { document.getElementById('iphoneNew2O2').style.display = 'none'; }
        if (document.getElementById('iphonePayAsYouGo')) { document.getElementById('iphonePayAsYouGo').style.display = 'none'; }
        if (document.getElementById('iphoneActivations')) { document.getElementById('iphoneActivations').style.display = 'none'; }
        if (document.getElementById('iphoneBasicRequirement')) { document.getElementById('iphoneBasicRequirement').style.display = 'none'; }
        if (document.getElementById('iphoneFAQ')) { document.getElementById('iphoneFAQ').style.display = 'none'; }
       
        /* Show selected Div */
        if (document.getElementById(divID)) { document.getElementById(divID).style.display = 'block'; }
}

function swapPrimeContent(divID) {
       
        /* Hide all divs */
        if (document.getElementById('iphonePaym')) { document.getElementById('iphonePaym').style.display = 'none'; }
        if (document.getElementById('iphonePayg')) { document.getElementById('iphonePayg').style.display = 'none'; }
        
       
        /* Show selected Div */
        if (document.getElementById(divID)) { document.getElementById(divID).style.display = 'block'; }
}

function swapMthSubContent(divID) {
       
        /* Hide all divs */
        if (document.getElementById('iphoneMthKeyFeatures')) { document.getElementById('iphoneMthKeyFeatures').style.display = 'none'; }
        if (document.getElementById('iphoneMthExistCustomers')) { document.getElementById('iphoneMthExistCustomers').style.display = 'none'; }
        if (document.getElementById('iphoneMthEligibility')) { document.getElementById('iphoneMthEligibility').style.display = 'none'; }
        if (document.getElementById('iphoneMthNewToO2')) { document.getElementById('iphoneMthNewToO2').style.display = 'none'; }
        if (document.getElementById('iphoneMthPayAsYouGo')) { document.getElementById('iphoneMthPayAsYouGo').style.display = 'none'; }
        if (document.getElementById('iphoneMthActivation')) { document.getElementById('iphoneMthActivation').style.display = 'none'; }
        if (document.getElementById('iphoneMthBasicReq')) { document.getElementById('iphoneMthBasicReq').style.display = 'none'; }
        if (document.getElementById('iphoneMthFAQs')) { document.getElementById('iphoneMthFAQs').style.display = 'none'; }
       
        /* Show selected Div */
        if (document.getElementById(divID)) { document.getElementById(divID).style.display = 'block'; }
}