function checkForm(){
	if(!document.getElementById("full_name").value){
		alert("Please insert your full name");
		document.getElementById("full_name").focus()
		return false;
	}
	if(!document.getElementById("email").value){
		alert("Please insert your email");
		document.getElementById("email").focus()
		return false;
	}
	if(!document.getElementById("phone").value){
		alert("Please insert your phone number");
		document.getElementById("phone").focus()
		return false;
	}
	if(!document.getElementById("mobile").value){
		alert("Please insert your mobile (cellphone) number");
		document.getElementById("mobile").focus()
		return false;
	}
	if(!document.getElementById("area_of_expertise").value){
		alert("Please insert your area of expertise");
		document.getElementById("area_of_expertise").focus()
		return false;
	}
}