var win=null;

function NewWindow(mypage,myname,w,h,scroll,pos) {
	if(pos=="random")
	{LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;
	TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
	if(pos=="center")
	{LeftPosition=(screen.width)?(screen.width-w)/2:100;
	TopPosition=(screen.height)?(screen.height-h)/2:100;}
	else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=0}
	settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=yes,resizable=yes';
	win=window.open(mypage,myname,settings);

}

function chkDagUren(Form) {
		if (Form.r_MaxUren.value > 10) {
			alert("Het maximaal aantal uren mag niet meer dan 10 zijn");
			Form.r_MaxUren.focus();
			return false;
		}
		if ((!Form.Avondweekend[0].checked)&&
			(!Form.Avondweekend[1].checked)
			) {
			alert("U heeft nog geen keuze gemaakt: Avondweekend");
			Form.Avondweekend[0].focus();
			return false;
		}
		if (	(Form.m_DagUren[0].checked) || (Form.m_DagUren[1].checked) ||
			(Form.m_DagUren[2].checked) || (Form.m_DagUren[3].checked) ||
			(Form.m_DagUren[4].checked) || (Form.m_DagUren[5].checked) ||
			(Form.m_DagUren[6].checked) || (Form.m_DagUren[7].checked) ||
			(Form.m_DagUren[8].checked) || (Form.m_DagUren[9].checked) 
			) {
			return true;
			}
			alert("Geef minstens één dag(deel) op");
			Form.m_DagUren[0].focus();
			return false;

		}

function chkSoort(Form) {
		if (	(Form.m_Soort[0].checked) || (Form.m_Soort[1].checked) ||
			(Form.m_Soort[2].checked) || (Form.m_Soort[3].checked) ||
			(Form.m_Soort[4].checked) || (Form.m_Soort[5].checked) ||
			(Form.m_Soort[6].checked) || (Form.m_Soort[7].checked) ||
			(Form.m_Soort[8].checked) || (Form.m_Soort[9].checked) ||
			(Form.m_Soort[10].checked) || (Form.m_Soort[11].checked)
			) {
			return true;
		}

			alert("Geeft minstens één dienst aan");
			Form.m_Soort[0].focus();
			return false;
	}
function check(formulier)
{
	if (formulier.email.value=="")
	{
		alert("U dient hier uw email adres in te voeren.");
		formulier.email.focus();
		return (false);
	}
}