function img_on(nr,img)
{
    document.getElementById('partner_'+nr).src = img;
}

function img_off(nr,img)
{
    document.getElementById('partner_'+nr).src = img;
}

function trimString (str) 
{
    str.value = str.value.replace(/^\s+/g, '').replace(/\s+$/g, '');
}

function search()
{
    var ok = true;
    var keyword = document.getElementById('search');
    
    if (keyword.value.length < 3)
	{
		alert("Please enter at least 3 characters to search for!");
        keyword.focus();
		ok=false;
	}
    
    if (ok) 
    {
        document.getElementById('search_from').action = document.getElementById('search_from').action + '/' + escape(document.getElementById('search').value);
        document.getElementById('search_from').submit();
    }
}

function check_search()
{
   var ok=true;
   var key = document.getElementById('search').value.length;
   
   if (key<3)
   {
    ok = false;
    alert('Please enter at least 3 characters to search for!');
    
   }
   document.getElementById('search_from').action = document.getElementById('search_from').action + '/' + escape(document.getElementById('search').value);
   return ok;
}

function subscribe()
{
    document.getElementById('newsletter_form').submit();
}

function showImage(url)
{
    var myWin; 
    var y=(screen.height/2)-(400/2);
    var x=(screen.width/2)-(400/2);
    myWin = window.open(url, "Enlarge_picture","width=396,height=412,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,top="+y+",left="+x);
    myWin.focus();
}