function validateForm(){
	if($('sub_fra').value == ""){
		return false;
	}
}

function limitText(limitField, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	}
}

function Collapse(id) {
    try
    {        
        if (id == currentOpenId || $(id).getHeight() == 0)
        {
            currentOpenId = null;
            Effect.SlideUp(id); 
        }
        else
        {
            if (currentOpenId != null)
                Effect.SlideUp(currentOpenId);
                
            currentOpenId = id;
            Effect.SlideDown(id); 
        }
        
        return false;    
    }
    catch (e)
    {
        if (debug) alert(e.message);
    } 
}

function DoUpdate(pageid, containerid, pageurl)
{
    try
    {        
        if (containerid != currentOpenId)
        {
          
            UpdateContent(pageid);
        }
        
        Collapse(containerid);
    }
    catch (e)
    {
        if (debug) alert(e.message);
    }
}
function UpdateContent(pageid)
{}

// alle sub cats inklappen
  Event.observe(window, 'load', function() {
    try
    {
        if(!$('collapse')) return; // bestaat main menu?
        
        var list = $('collapse').select('[class="subcat"]');	
        var i = 0;
  
        for (i=0; i < list.length;i++)
        {
            Effect.SlideUp(list[i].id, { duration: 0.0 });         
        }
    
        list = $('collapse').select('[class="selcat"]');
    
        if (list.length == 1)
            currentOpenId = list[0].id;  
        }
    catch (e)
    {
        if (debug) alert(e.message);
    }
});