rem: var existingDiv = document.getElementById(tooltipDivId); 
add: var existingDiv = ORBEON.util.Dom.getElementById(tooltipDivId); 
context:     _showToolTip: function(event, label, type, message) {        // Initialize tooltip library        if (!ORBEON.xforms.Globals.tooltipLibraryInitialized) {            ORBEON.xforms.Globals.tooltipLibraryInitialized = true;            tt_init();        }        // Figure out if we need to create a div        // When there is an existing div, check if it has the same message        var needToCreateDiv;        var tooltipDivId = label.htmlFor + "-" + type;        var existingDiv = document.getElementById(tooltipDivId);        if (existingDiv != null) {            if (existingDiv.message == message) {                needToCreateDiv = false;            } else {                needToCreateDiv = true;                existingDiv.parentNode.removeChild(existingDiv);            }        } else {            needToCreateDiv = true;        }        // Create new div when necessary        if (needToCreateDiv) {            var divHTML = tt_Htm(this, tooltipDivId, message);            var container = document.createElement("DIV");            container.innerHTML = divHTML;            var newDiv = container.firstChild;            newDiv.message = message;            document.body.appendChild(newDiv);        }        // Show the help div        tt_Show(event, tooltipDivId, false, 0, false, false,            ttOffsetX, ttOffsetY, false, false, ttTemp);    },
meta: 5390	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5390/58f774b831fe409c94e9200f2ac06c01bdc56f81/xforms.js/clean/src/resources-packaged/ops/javascript/xforms.js