function validateForm(){const dobInput=document.getElementById("dob").value;const state=document.getElementById("state").value;const postcode=document.getElementById("postcode").value;const firstName=document.getElementById("firstName").value;const lastName=document.getElementById("lastName").value;const otherSkillsCheckbox=document.getElementById("otherSkills");const otherSkillsText=document.getElementById("otherSkillsText").value;const errorMessages=document.getElementById("errorMessages");errorMessages.textContent="";const dobRegex=/^(\d{2})\/(\d{2})\/(\d{4})$/;if(!dobRegex.test(dobInput)){errorMessages.textContent+="Invalid date format (dd/mm/yyyy).\n";event.preventDefault()}else{const[,day,month,year]=dobRegex.exec(dobInput);const dobDate=new Date(`${year}-${month}-${day}`);const currentDate=new Date;const age=currentDate.getFullYear()-dobDate.getFullYear();if(age<15||age>80){errorMessages.textContent+="Age must be between 15 and 80.\n";event.preventDefault()}}const stateToPostcode={VIC:["3","8"],NSW:["1","2"],QLD:["4","9"],NT:["0"],WA:["6"],SA:["5"],TAS:["7"],ACT:["0"]};if(!stateToPostcode[state]||!stateToPostcode[state].test(postcode)){errorMessages.textContent+="Postcode does not match selected state.\n";event.preventDefault()}if(otherSkillsCheckbox.checked&&otherSkillsText.trim()===""){errorMessages.textContent+="Please provide other skills.\n";event.preventDefault()}return true}