function getParams() 
{
    var idx = document.URL.indexOf('?');
    var params = new Array();
    if (idx != -1) 
    {
        var pairs = document.URL.substring(idx+1, document.URL.length).split('&');
        for (var i=0; i<pairs.length; i++) 
        {
            nameVal = pairs[i].split('=');
            params[nameVal[0]] = nameVal[1];
        }
    }
    return params;
}
params = getParams();

function fillMeetings()
{ 
     // this function is used to fill the category list on load
    addOption(document.registration.Meetings, "01/12/2012", "01/12/2012", "");

    var meeting = unescape(params["Meetings"]);
    if (meeting != null && meeting.length > 0 && meeting != 'undefined')
    {
        registration.Meetings.value = meeting;
        SelectDinner();
    }
}

function SelectDinner()
{
    if(document.registration.Meetings.value == '01/12/2012')
    {
        addOption(document.registration.Dinner, "Meal", "Meal");
        //addOption(document.registration.Dinner, "Meal", "BBQ chicken");
        //addOption(document.registration.Dinner,"Meal", "Chocolate Éclair");
        addOption(document.registration.Dinner,"No Meal", "No Meal");
    }
}

function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}

function addOption(selectbox, value, text )
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;

	selectbox.options.add(optn);
}