function validation_contact(){var enquiry=document.getElementById('enquiry');var alerts=document.getElementById('alerts');var first_name=document.getElementById('first_name');var first_name_alert=document.getElementById('first_name_alert');var last_name=document.getElementById('last_name');var last_name_alert=document.getElementById('last_name_alert');var phone=document.getElementById('phone');var phone_alert=document.getElementById('phone_alert');var email=document.getElementById('email');var email_alert=document.getElementById('email_alert');var pcode=document.getElementById('pcode');var pcode_alert=document.getElementById('pcode_alert');alerts.style.display='none';first_name_alert.style.display='none';last_name_alert.style.display='none';phone_alert.style.display='none';email_alert.style.display='none';pcode_alert.style.display='none';if(first_name.value==""||last_name.value==""||phone.value==""||email.value==""||pcode.value==""){alerts.style.display='block';if(first_name.value==""){first_name_alert.style.display='block';}
if(last_name.value==""){last_name_alert.style.display='block';}
if(phone.value==""){phone_alert.style.display='block';}
if(email.value==""){email_alert.style.display='block';}
if(pcode.value==""){pcode_alert.style.display='block';}
window.location="#alert_box";}
else
{enquiry.submit();}}
function validation_funding(){var enquiry=document.getElementById('enquiry');var alerts=document.getElementById('alerts');var first_name=document.getElementById('first_name');var first_name_alert=document.getElementById('first_name_alert');var phone=document.getElementById('phone');var phone_alert=document.getElementById('phone_alert');var state=document.getElementById('state');var state_alert=document.getElementById('state_alert');alerts.style.display='none';first_name_alert.style.display='none';phone_alert.style.display='none';state_alert.style.display='none';if(first_name.value==""||phone.value==""||state.value==""){alerts.style.display='block';if(first_name.value==""){first_name_alert.style.display='block';}
if(phone.value==""){phone_alert.style.display='block';}
if(state.value==""){state_alert.style.display='block';}
window.location="#alert_box";}
else
{enquiry.submit();}}
function validation_tech(){var techsupport=document.getElementById('techsupport');var alerts=document.getElementById('alerts');var first_name=document.getElementById('first_name');var first_name_alert=document.getElementById('first_name_alert');var last_name=document.getElementById('last_name');var last_name_alert=document.getElementById('last_name_alert');var email=document.getElementById('email');var email_alert=document.getElementById('email_alert');var operating_system=document.getElementById('operating_system');var operating_system_alert=document.getElementById('operating_system_alert');var browser=document.getElementById('browser');var browser_alert=document.getElementById('browser_alert');var speed_test=document.getElementById('speed_test');var speed_test_alert=document.getElementById('speed_test_alert');alerts.style.display='none';first_name_alert.style.display='none';last_name_alert.style.display='none';email_alert.style.display='none';operating_system_alert.style.display='none';browser_alert.style.display='none';speed_test_alert.style.display='none';if(first_name.value==""||last_name.value==""||email.value==""||operating_system.value=="none selected"||browser.value=="none selected"||speed_test.value==""){alerts.style.display='block';if(first_name.value==""){first_name_alert.style.display='block';}
if(last_name.value==""){last_name_alert.style.display='block';}
if(email.value==""){email_alert.style.display='block';}
if(operating_system.value=="none selected"){operating_system_alert.style.display='block';}
if(browser.value=="none selected"){browser_alert.style.display='block';}
if(speed_test.value==""){speed_test_alert.style.display='block';}
window.location="#alert_box";}
else
{techsupport.submit();}}
function guide_toggle(id){var e=document.getElementById(id);document.getElementById('phone_guide').style.display='none';document.getElementById('operating_system_guide').style.display='none';document.getElementById('browser_guide').style.display='none';document.getElementById('silverlight_guide').style.display='none';document.getElementById('speed_test_guide').style.display='none';document.getElementById('other_sites_guide').style.display='none';document.getElementById('errors_guide').style.display='none';document.getElementById('area_of_course_guide').style.display='none';e.style.display='block'}
function calculate_1rm(action){var weight=document.getElementById('weight');var weight_alert=document.getElementById('weight_alert');var reps=document.getElementById('repetitions');var reps_alert=document.getElementById('reps_alert');var one_rep_max=document.getElementById('one_rep_max');var one_rep_max_value=document.getElementById('one_rep_max_value');one_rep_max.style.display='none';weight_alert.style.display='none';reps_alert.style.display='none';if(action=="clear")
{weight.value="";reps.value="";}
else
{if(weight.value==""||reps.value=="")
{if(weight.value==""){weight_alert.style.display='block';}
if(reps.value==""){reps_alert.style.display='block';}}
else if(isNaN(weight.value)||isNaN(reps.value))
{if(isNaN(weight.value)){weight_alert.style.display='block';}
if(isNaN(reps.value)){reps_alert.style.display='block';}}
else
{one_rep_max_value.value=Math.round(((reps.value/30)+1)*weight.value);one_rep_max.style.display='block';}}}
function calculate_vo2_max(action){var male=document.getElementById('male');var sex="";if(male.checked==true){sex="male";}else{sex="female";}
var bpm=document.getElementById('bpm');var bpm_alert=document.getElementById('bpm_alert');var vo2_max=document.getElementById('vo2_max');var vo2_max_value=document.getElementById('vo2_max_value');vo2_max.style.display='none';bpm_alert.style.display='none';if(action=="clear")
{male.checked=true;bpm.value="";}
else
{if(bpm.value==""||isNaN(bpm.value))
{bpm_alert.style.display='block';}
else if(sex=="male")
{vo2_max_value.value=Math.round(111.33-(0.42*(bpm.value-1)));vo2_max.style.display='block';}
else if(sex=="female")
{vo2_max_value.value=Math.round(65.81-(0.1847*(bpm.value-1)));vo2_max.style.display='block';}}}