/* ----- teasers.js ----- */
/*
  Function teaserShowHidePortlet
*/

function teaserShowHidePortlet(id) {

    elem = document.getElementById(id + '-content');
    img  = document.getElementById(id + '-image');
    
    if(!elem ||! img) {
    	alert('not found ' + id);
    	return false;
    }
    
    if(elem.style.display == 'block') {
        elem.style.display = 'none';        
        img.src = 'teaser_tree_collapsed.gif';
    } else {
        elem.style.display = 'block';       
        img.src = 'teaser_tree_expanded.gif';
    }
    
    return false;
}