function clearFormFields(o)
{
    if (o.clearInputs == null) o.clearInputs = true;
    if (o.clearTextareas == null) o.clearTextareas = true;
    if (o.passwordFieldText == null) o.passwordFieldText = false;
    if (o.addClassFocus == null) o.addClassFocus = false;
    if (!o.filter) o.filter = "default";
    if(o.clearInputs) {
        var inputs = document.getElementsByTagName("input");
        for (var i = 0; i < inputs.length; i++ ) {
            if((inputs[i].type == "text" || inputs[i].type == "password") && inputs[i].className.indexOf(o.filterClass)) {
                inputs[i].valueHtml = inputs[i].value;
                inputs[i].onfocus = function ()    {
                    if(this.valueHtml == this.value) this.value = "";
                    if(this.fake) {
                        inputsSwap(this, this.previousSibling);
                        this.previousSibling.focus();
                    }
                    if(o.addClassFocus && !this.fake) {
                        this.className += " " + o.addClassFocus;
                        this.parentNode.className += " parent-" + o.addClassFocus;
                    }
                }
                inputs[i].onblur = function () {
                    if(this.value == "") {
                        this.value = this.valueHtml;
                        if(o.passwordFieldText && this.type == "password") inputsSwap(this, this.nextSibling);
                    }
                    if(o.addClassFocus) {
                        this.className = this.className.replace(o.addClassFocus, "");
                        this.parentNode.className = this.parentNode.className.replace("parent-"+o.addClassFocus, "");
                    }
                }
                if(o.passwordFieldText && inputs[i].type == "password") {
                    var fakeInput = document.createElement("input");
                    fakeInput.type = "text";
                    fakeInput.value = inputs[i].value;
                    fakeInput.className = inputs[i].className;
                    fakeInput.fake = true;
                    inputs[i].parentNode.insertBefore(fakeInput, inputs[i].nextSibling);
                    inputsSwap(inputs[i], null);
                }
            }
        }
    }
    if(o.clearTextareas) {
        var textareas = document.getElementsByTagName("textarea");
        for(var i=0; i<textareas.length; i++) {
            if(textareas[i].className.indexOf(o.filterClass)) {
                textareas[i].valueHtml = textareas[i].value;
                textareas[i].onfocus = function() {
                    if(this.value == this.valueHtml) this.value = "";
                    if(o.addClassFocus) {
                        this.className += " " + o.addClassFocus;
                        this.parentNode.className += " parent-" + o.addClassFocus;
                    }
                }
                textareas[i].onblur = function() {
      				if(this.value == "") this.value = this.valueHtml;
                    if(o.addClassFocus) {
                        this.className = this.className.replace(o.addClassFocus, "");
                        this.parentNode.className = this.parentNode.className.replace("parent-"+o.addClassFocus, "");
                    }
                }
            }
        }
    }
    function inputsSwap(el, el2) {
        if(el) el.style.display = "none";
        if(el2) el2.style.display = "inline";
    }
}