function NewWindow(mypage,myname,w,h,scroll)
{	
	var win = null;
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/3 : 0;
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable' 
	win = window.open(mypage,myname,settings)
	win.focus();
}

function ConfirmNew(mypage,myname,w,h,scroll)
{	
	
	if(confirm('Item toevoegen?')) {
		var win = null;
		LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
		TopPosition = (screen.height) ? (screen.height-h)/3 : 0;
		settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable' 
		win = window.open(mypage,myname,settings)
		win.focus();
	}
}