function isempty(str)
{
	var r = new RegExp("^ *$");
	return r.test(str);
} 

Hilite = {
    elementid: 'tartalom_css',
    max_nodes: 1000,
    style_name: 'hilite'
};

Hilite.hiliteElement = function (elm, query) {
    if (isempty(query) || elm.childNodes.length == 0) return;
    var qre = new RegExp(query.toLowerCase(), "i");
    var textproc = function (node) {
        var match = qre.exec(node.data);
        if (match) {
            var val = match[0];
            var k = '';
            var node2 = node.splitText(match.index);
            var node3 = node2.splitText(val.length);
            var span = node.ownerDocument.createElement('SPAN');
            node.parentNode.replaceChild(span, node2);
            span.className = Hilite.style_name;
            span.appendChild(node2);
            return span;
        } else {
            return node;
        }
    };
    Hilite.walkElements(elm.childNodes[0], 1, textproc);
};
Hilite.hilite = function (pattern) {
   
    if (!isempty(pattern)) {
	 
        var e = document.getElementById(Hilite.elementid);
        Hilite.hiliteElement(e, pattern);
		
		
    }
};
Hilite.walkElements = function (node, depth, textproc) {
    var skipre = /^(script|style|textarea|input)/i;
    var count = 0;
    while (node && depth > 0) {
        count++;
        if (count >= Hilite.max_nodes) {
            var handler = function () {
                Hilite.walkElements(node, depth, textproc);
            };
            setTimeout(handler, 50);
            return;
        }
        if (node.nodeType == 1) {
            if (!skipre.test(node.tagName) && node.childNodes.length > 0) {
                node = node.childNodes[0];
                depth++;
                continue;
            }
        } else if (node.nodeType == 3) {
            node = textproc(node);
        }
        if (node.nextSibling) {
            node = node.nextSibling;
        } else {
            while (depth > 0) {
                node = node.parentNode;
                depth--;
                if (node.nextSibling) {
                    node = node.nextSibling;
                    break;
                }
            }
        }
    }
};