function show_driver(dropdown){
	driving_by = dropdown.options[dropdown.options.selectedIndex].value;
	if(driving_by == "Insured Only" || driving_by == "Any driver over 25"){
		oShow = document.getElementById("named1");
		oHide = document.getElementById("named2");
		oShow.style.display = "none";
		oHide.style.display = "none";
	}
	else if(driving_by == "Insured and one named"){
		oShow = document.getElementById("named1");
		oHide = document.getElementById("named2");
		oShow.style.display = "block";
		oHide.style.display = "none";
	}
	else if(driving_by == "Insured and two named"){
		oShow = document.getElementById("named1");
		oHide = document.getElementById("named2");
		oShow.style.display = "block";
		oHide.style.display = "block";
	}
}
function show_accident(radiobutt){
	oShow = document.getElementById("accident_details");
	if(radiobutt.value == "yes") {
		oShow.style.display = "block";
	}
	else{
		oShow.style.display = "none";
	}
}
function show_conviction(radiobutt){
	oShow = document.getElementById("conviction_details");
	if(radiobutt.value == "yes") {
		oShow.style.display = "block";
	}
	else{
		oShow.style.display = "none";
	}
}
function validate_quote(form){
		if(document.getElementById("first_name").value == ""){
			alert("please enter your first name");
			return(false);
		}
		else if(document.getElementById("surname").value == ""){
			alert("please enter your surname");
			return(false);
		}
		else if(document.getElementById("tel_no_home").value == ""){
			alert("please enter your home telephone number");
			return(false);
		}
		else if(document.getElementById("postcode").value == ""){
			alert("please enter your postcode");
			return(false);
		}
		else if(!echeck(document.getElementById("email_address").value)){
			alert("please enter a valid email");
			return(false);
		}
		else if(document.getElementById("Where_they_heard_from_us").value == "-"){
			alert("please select where you heard about us");
			return(false);
		}
}
function echeck(str) {
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,6})+$/.test(str)){
return (true)
}
return (false)
}
function show_cover(radiobutt){
	oShow = document.getElementById("goodsintransit");
	if(radiobutt.value == "yes") {
		oShow.style.display = "block";
		document.getElementById('coverdrop').selectedIndex = 1;
	}
	else{
		oShow.style.display = "none";
		document.getElementById('coverdrop').selectedIndex = 0;
	}
}