// Function for showing product tab (content)
function showtab(tabid){
	
	// Alle tabs worden eerst verborgen
	var row = 0;
	var element = document.getElementById('tabs_content').getElementsByTagName('div');
	while(row < element.length){
		
		element[row].className = 'hidden_tab';
		row++;
	}

	document.getElementById('tab_' + tabid + '').setAttribute("class", "view_tab");
	
	// Alle tabs krijgen eerst de normale kleur
	var row = 0;
	var element = document.getElementById('ul_tabs').getElementsByTagName('li');
	while(row < element.length){
		
		element[row].className = 'notactive_tab';
		row++;
	}

	document.getElementById('tab_button_' + tabid + '').setAttribute("class", "active_tab");
}

// Function for giving a abort message
function confirmSubmit(message)
{
var agree=confirm(message);
if (agree)
	return true ;
else
	return false ;
}

function ahref(url) {
	location.href=url;	
}