//Validate trainee application details

function check(f)
{
	submitOK="true";
	var errors = "";
	var surname = document.getElementById("trainee_surname").value;
	var givenname = document.getElementById("trainee_givenname").value;
	var homephone = document.getElementById("trainee_homephone").value;
	var mobilephone = document.getElementById("trainee_mobilephone").value;
	var email = document.getElementById("trainee_email").value;
			
	if(surname.length == 0)
	{
		errors = errors + "You have not entered a surname. \n";
		submitOK = "false";
	}
	if(givenname.length == 0)
	{
		errors = errors + "You have not entered a givenname. \n";
		submitOK = "false";
	}
	if(homephone.length == 0)
	{
		errors = errors +  "You have not entered a homephone number. \n";
		submitOK = "false";
	}
	if(mobilephone.length == 0)
	{
		errors = errors +  "You have not entered a mobilephone number. \n";
		submitOK = "false";
	}
	if(email.length == 0)
	{
		errors = errors +  "You have not entered an email. \n";
		submitOK = "false";
	}		
	if (submitOK=="false")
 	{
 		alert('There were errors in your submission : \n\n' + errors);
 		return false;
 	}
 	
}
function clearText(thefield){
	if (thefield.defaultValue==thefield.value){
		thefield.value = ""
		//for (var i=0;i<document.forms[0].elements.length;i++){		
		//	if (document.forms[0].elements[i].type == "checkbox")
   		//		document.forms[0].elements[i].checked = true;
		//}
	}
}

function checkchange(thefield){
	if (thefield.value==""){
		thefield.value = thefield.defaultValue
		for (var i=0;i<document.forms[0].elements.length;i++) {
			if (document.forms[0].elements[i].type == "checkbox")
   				document.forms[0].elements[i].checked = false;
		}
	}
}