//-----------------------------------------------------------------
//Usage: Returns the first instance of a DOM Element that contains the
//  desiredElementId. Useful if your framework appends to IDs, instead of
//  IE: myElement, you have ct001_myElement
//Parameters:
//  desiredElementId - The id to search for
//  tagName - (Optional) The tag name of elements to get.
//  (If you know your element is a div, for example, search only divs.)
//-----------------------------------------------------------------
function getElementBySimilarId(desiredElementId, tagName) {
    var elems;
    var returnElem = null;
    //Get all elements of the correct type
    if (tagName == null || tagName == '') {
        elems = document.getElementsByTagName('*');
    }
    else {
        try {
            elems = document.getElementsByTagName(tagName);
        }
        catch (e) {
            alert(type + ' is not a valid tagName/Element Type');
        }
    }
    //iterate through the elements
    for (var i = 0; i < elems.length; i++) {
        if (elems[i].id.indexOf(desiredElementId) > -1) {
            returnElem = elems[i];
            break;
        }
    }
    return returnElem;
}