/**
    Finds form element
*/
function findFormElement(form,elname){
    var elements = eval("document." + form + ".elements");
    for(var i = 0; i < elements.length; i++){
        if(elements[i].name == elname)
            return elements[i];
    }
    
    return null;
}

/**
    Finds form element
*/
function findFormElementByType(form,type){
    var elements = eval("document." + form + ".elements");
    for(var i = 0; i < elements.length; i++){
        if(elements[i].type == type)
            return elements[i];
    }
    
    return null;
}