function selectTab(tabName)
{
	document.getElementById("tab_enkel").className = "tabInactive";
	document.getElementById("tab_page_enkel").className = "tabPageClosed";
								
	document.getElementById("tab_avancerad").className = "tabInactive";
	document.getElementById("tab_page_avancerad").className = "tabPageClosed";
								
	document.getElementById('tab_' + tabName).className = "tabActive";
	document.getElementById('tab_page_' + tabName).className = "tabPageOpen";
}


function changeTab(tab)
{
	if(tab=='tab_avancerad')
	{
		document.getElementById("tab_avancerad").className = 'tabActive';
		document.getElementById("tab_page_avancerad").className = 'tabPageOpen';
		document.getElementById("tab_enkel").className = 'tabInactive';
		document.getElementById("tab_page_enkel").className = 'tabPageClosed';

	}
	else
	{
		document.getElementById("tab_avancerad").className = 'tabInactive';
		document.getElementById("tab_page_avancerad").className = 'tabPageClosed';
		document.getElementById("tab_enkel").className = 'tabActive';
		document.getElementById("tab_page_enkel").className = 'tabPageOpen';			
	}
}