function foldByName(e) {

    var elmts = document.getElementsByName(e);
    //alert("elments : " + elmts + " " + elmts.length);
    for (i = 0 ; i < elmts.length ; i++) {
	     elmt = elmts[i];
         //alert("elment : " + elmt);
	     if(elmt.style.display == 'none') {
	        elmt.style.display = 'block';
	     } else {
	        elmt.style.display = 'none';
	        
	     }
    }
}

function foldAll() {
        var Nodes = document.getElementsByTagName('div')
        var max = Nodes.length
        for(var i = 0;i < max;i++) {
            var nodeObj = Nodes.item(i);
            var nodeId = nodeObj.id;
            if (nodeId != "" && nodeId.indexOf("fold_") != -1) {
                nodeObj.style.display = 'block';
            }
        }
}