function checksignup() {
	
	if(document.getElementById("name").value == ""){
		alert("Please enter your name!");
		document.getElementById("name").focus();
		return false;
	}
	
	if(document.getElementById("organisation").value == ""){
		alert("Please enter your organisation!");
		document.getElementById("organisation").focus();
		return false;
	}
	
	if(document.getElementById("address").value == ""){
		alert("Please enter your address!");
		document.getElementById("address").focus();
		return false;
	}
	
	if(document.getElementById("email").value == ""){
		alert("Please enter your email address!");
		document.getElementById("email").focus();
		return false;
	}
	
	if(document.getElementById("email").value.indexOf("@") == -1){
		alert("Email address not valid, please re-enter!");
		document.getElementById("email").focus();
		return false;
	}

}