source: greenstone3/branches/customizingGreenstone3/web/ui/skins/oran/js/scripts.js@ 14712

/**
 * @author dnk2
 */

function showContents() {
    var contents = document.getElementById("contents") ;
    var contentsLink = document.getElementById("contentsLink") ;
    
    contents.style.left = contentsLink.offsetLeft + "px" ;
    contents.style.top = (contentsLink.offsetTop + contentsLink.offsetHeight) + "px" ;
    
    contents.onmouseout = new Function("event", "if (isMouseLeaveOrEnter(event, this)) hideContents() ;") ;
    
    var ul = getSublist(contents) ;
    
    for(var i=0 ; i<ul.childNodes.length ; i++) {
        collapseNode(ul.childNodes[i]) ;
    }
    
    var currNode = document.getElementById("currentSection") ;
    if (currNode != null) {
        //alert("current section found") ;
        currNode = currNode.parentNode ;
        expandAncestors(currNode) ;
    } else {
        //alert("no current section found") ;
    }
    
    
    contents.style.display = "block" ;
}


function expandAncestors(node) {
    
    var parent = node.parentNode.parentNode ;
    
    if (parent.id != "contents") {
        parent.className = "expanded" ;
        expandAncestors(parent) ;
    }   
}

function collapseNode(node) {
    if (node.className == "expanded")
        node.className = "collapsed" ;
}

function toggleNode(nodeId) {
    
    var node = document.getElementById(nodeId) ;

    var ul = getSublist(node) ;
    
    if (node.className == "expanded")
        node.className = "collapsed" ;
    else
        node.className = "expanded" ;
        
    for(var i=0 ; i<ul.childNodes.length ; i++) {
        //alert(ul.childNodes[i].innerHTML)
        collapseNode(ul.childNodes[i]) ;
    }
}
 
function hideContents() {
    var contents = document.getElementById("contents") ;
    contents.style.display = "none" ;
}

 
 // this function determines whether the event is the equivalent of the microsoft // mouseleave or mouseenter events. 
function isMouseLeaveOrEnter(e, handler) { 

    if (e.type != 'mouseout' && e.type != 'mouseover') 
        return false; 
        
    var reltg = e.relatedTarget ? e.relatedTarget : e.type == 'mouseout' ? e.toElement : e.fromElement; 
    while (reltg && reltg != handler) 
        reltg = reltg.parentNode; 
        
    return (reltg != handler); 
}

function getSublist(node) {
    
    for (var x=0 ; x<node.childNodes.length ; x++){
        
        if (node.childNodes[x].tagName == "UL")
            return node.childNodes[x] ;
    }
    
    return null ;
}