// JavaScript Document
function emptyPostcodeField(element){
	element.value = "";	
}
function checkPostcodeField(txt){
	if(txt.value == ""){
		alert("You must enter a valid postcode");
		return false;
	}else{
		return true;	
	}
}
function validate(sel){
	if(sel.options[sel.selectedIndex].value == 0){
		alert("Choose a centre first");
		return false;
	}else{
		return true;	
	}
}

function formDataUnselected(){
	if(document.frmFindCentre.selCentres.options[document.frmFindCentre.selCentres.selectedIndex].value == 0 || document.frmChooseAct.selChooseAct.options[document.frmChooseAct.selChooseAct.selectedIndex].label == -1){
		return true;
	}else{
		return false;	
	}
}