var bcount=0;
function brochureclick(tickname){

	var a;
	a=eval("document.forms.contactform."+tickname+".checked");
	if (a == true)
		{
		bcount=bcount+1;
		}
	else
		{
		bcount=bcount-1;
		}
	if (bcount>2)
		{
		alert("Only three tick boxes can be ticked.");
		eval("document.forms.contactform."+tickname+".checked = false");
		bcount=bcount-1;
		}
}


function verify() {

	var errmessage = "";
	
	if (document.forms.contactform.Surname.value == "") {
		if (errmessage.length==0)document.forms.contactform.Surname.focus();	
		errmessage += 'Please enter your surname.\n';
	}
	

	var email = new String(document.forms.contactform.Email.value)
	if (email == ""||email.indexOf("@") == -1||email.indexOf(".") == -1){
		if (errmessage == "") document.forms.contactform.Email.focus();	
		errmessage += 'Please enter a valid email address.\n';
	}	


	if (errmessage!=""){
		alert(errmessage);
		return false;
	}
	else{
//		document.forms.contactform.action="send-contact-form1-dev.aspx"
		document.forms.contactform.action="send-contact-form1.aspx"
		return true;
	}
	
	
}

function changeSourceList(theSelect){
	clearbox()
	addOption(document.forms.contactform.source,"Please select",0);	
	//loop each item in source1 select list
	var formObject = document.forms.contactform.source2;
    for (var i=formObject.options.length-1;i>-1;i--) {
        if (formObject.options[i].id==theSelect.options[theSelect.options.selectedIndex].value){
            addOption(document.forms.contactform.source,formObject.options[i].text,formObject.options[i].value);
         }
    }
	document.forms.contactform.source.options.selectedIndex = -0;
	
}

function clearbox(){
	document.forms.contactform.source.options.length = 0;
}

function addOption(object,text,value) {
    var defaultSelected = true;
    var selected = true;
    var optionName = new Option(text, value, defaultSelected, selected)
    object.options[object.length] = optionName;
}