function switchAssistentOld()
{
	obj = document.getElementById('siteAssistent');
	obj.style.height = '0px;';
	if(obj.style.overflow == 'visible')
	{
		obj.style.overflow = 'hidden';
	} else {
		obj.style.overflow = 'visible';
	}
}

function switchAssistent()
{
	var objTable = document.getElementById('optionsassist');

	if(objTable.style.display=='none') {
		if ( navigator.userAgent.indexOf ( 'MSIE' ) != -1 ) {
			objTable.style.display = 'block';
		} else {
			objTable.style.display = 'table-row';
		}
	} else {
		objTable.style.display = 'none';
	}


}

function addrow()
{
		var obj_table = document.getElementById('factuur_table').insertRow(-1);

		obj_table.className = 'row1';

		var cell_1 = obj_table.insertCell(0);
		var cell_2 = obj_table.insertCell(1);
		var cell_3 = obj_table.insertCell(2);
		var cell_4 = obj_table.insertCell(3);

		cell_1.innerHTML = '<input type="hidden" name="invoiceContentID[]" value=""><input type="text" class="text" name="num[]" value="" style="width: 50px;" onchange="calculate_totals();">';
		cell_2.innerHTML = '<input type="text" class="text" name="content[]" value="" style="width: 350px;" onchange="addrow();">';
		cell_3.innerHTML = '<input type="text" class="text" name="price[]" value="" style="width: 75px;" onchange="calculate_totals();">';
		cell_4.innerHTML = '<input type="text" class="text" name="total_row[]" style="width: 75px;" readonly>';
}