function isNodeList(nodes) {
	var result = Object.prototype.toString.call(nodes);
	if ( typeof nodes === 'object' && /^\[object (HTMLCollection|NodeList|Object)\]$/.test(result) && nodes.length > 1 ) {
		console.log(result.length);
		return true;
	}
	return false;
}

function cleanLegend(field, legend)
{
    if(field.value == legend)
	{
        field.value='';
	}
}

function setLegend(field, legend)
{
    if(field.value == '')
	{
		if ( parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) < 10 ) {
			// set legend as value if browser doesnt support the placeholder attribute (e.g.: IE<10)
    		field.value = legend;
        }
	}
}

function regexmail(mail)
{
	var regexist = false;
	var res = false;
	if(typeof(RegExp) == 'function')
	{
		var testregex = new RegExp('abc');
			if(testregex.test('abc') == true)
			{
				regexist = true;
			}
		}
	if(regexist == true)
	{
		reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)(\\@)([a-zA-Z0-9\\-\\.]+)(\\.)([a-zA-Z]{2,4})$');
		res = (reg.test(mail));
		}
	else
		{
			res = (mail.search('@') >= 1 && mail.lastIndexOf('.') > mail.search('@') && mail.lastIndexOf('.') >= mail.length-5)
		}
		return(res);
}

// check is number $mobile
function regNumber(fData)
{
    var reg = new RegExp("^[-]?[0-9]+[\.]?[0-9]+$");
    return reg.test(fData)
}


function validate(form, messageDiv)
{
	var highlight = '#cc0000';
    var message = "";
    var status = true;

    if ( typeof(FieldsMandatory) !== 'object' ) {
    	return status;
    }

    for (var field in FieldsMandatory) {
    	is_list = isNodeList(form.elements[field]);
        if ( field != 'all' && typeof(form.elements[field]) != 'undefined' && form.elements[field] && (is_list || form.elements[field].style) ) {
        	console.log('----');
        	console.log(field);
        	console.log(is_list);
        	var is_valid = true;
        	value = null;
        	if ( is_list == true ) {
        		radio_checked = false;
        		for ( var i = form.elements[field].length-1; i >= 0; i-- ) {
					var tagName = '' + form.elements[field][i].tagName.toLowerCase();
					if ( tagName == 'input' && (form.elements[field][i].type == 'radio' || form.elements[field][i].type == 'checkbox') ) {
						if ( form.elements[field][i].checked ) {
							radio_checked = true;
							value = form.elements[field][i].value;
							break;
						};
					}
				}
        	} else {
        		console.log(form);
        		value = getElementText(form.elements[field]);
        	}

        	equalsplaceholder = false;
        	if ( typeof(FieldsMandatory[field].placeholder) != 'undefined' && FieldsMandatory[field].placeholder != '' ) {
        		equalsplaceholder = FieldsMandatory[field].placeholder == value;
        	}

        	// skip rule checks if the field is empty and not required, all rules will fail anyway
        	if ( typeof(FieldsMandatory[field]['rules']) != 'undefined' && typeof(FieldsMandatory[field]['rules'].required) == 'string' && (value == undefined || value == '' || equalsplaceholder == true) ) {
        		status = false;
        		is_valid = false;
        		rule = 'required';
        	} else {
	        	for ( var rule in FieldsMandatory[field]['rules'] ) {
	        		switch (rule) {
	        			case 'required':
	        					is_valid = value != '' && equalsplaceholder == false;
	        				break;
	        			case 'email':
	        					is_valid = regexmail(value);
	        				break;
	        		}
	        		if ( is_valid !== true ) {
	        			break;
	        		}
	        	}
        	}

        	if ( is_valid !== true ) {
    			if ( is_list == true ) {
    				for ( var i = form.elements[field].length-1; i >= 0; i-- ) {
    					var id = '' + form.elements[field][i].id;
    					if ( id.length > 0 ) {
	    					$$('label[for="' + id + '"]').each(function(elt) {
	    						elt.style.color = highlight;
	    					});
    					}
    				}
    			} else {
    				form.elements[field].style.color = highlight;
    				form.elements[field].style.borderColor = highlight;
    			}

                error = FieldsMandatory[field]['rules'][rule];
                if ( error == null ) {
                	error = rule;
                }
                if ( message.indexOf(error) < 0 ) {
                	message += error+'<br />';
                }
                status = false;
            } else {
    			if ( is_list ) {
    				for ( var i = form.elements[field].length-1; i >= 0; i-- ) {
						var id = '' + form.elements[field][i].id;
						if ( id.length > 0 ) {
	    					$$('label[for="' + id + '"]').each(function(elt) {
	    						elt.style.color = '#333333';
	    					});
						}
    				}
    			} else {
    				form.elements[field].style.color = '#333333';
    				form.elements[field].style.borderColor = '#999999';
    			}
            }
		}
    }
    document.getElementById(messageDiv).innerHTML = message;
    return status;
}

function getElementText(element)
{
    if(element.type == 'text' || element.type == 'hidden')
	{
        return element.value;
	}
	else if(element.type == 'select-one')
	{
        return element.options[element.selectedIndex].text;
	}
	else if(element.type == 'textarea')
	{
		return document.getElementById('message').value;
    }
}

function initForm() {
	$$('input, textarea').each(function(elt) {
		var e = $(elt);
		if ( ($placeholder = e.readAttribute('placeholder')) !== null ) {
			e.observe('blur', function(){setLegend(this, $(this).readAttribute('placeholder')); });
			e.observe('focus', function(){cleanLegend(this, $(this).readAttribute('placeholder')); });
			setLegend(elt, e.readAttribute('placeholder'));
		}
	});
}

function initLayout_handledButtons()
{
    $$("button.handledGeneric").each(function(elt) {
            if(!elt.form.id) {
                elt.form.id=Helper.getUniqueId();
            }
            var handle="";
            var reg=/^return/;
            $A(elt.form.attributes).each(function(item) {
                if(item.nodeName=='onsubmit') {
                    handle="if("+item.nodeValue.replace(reg,"").replace(/;$/,"")+")";
                }
            });
            var caption=$(elt).innerHTML;
            var jsCode="javascript:"+handle+" document.forms['"+elt.form.id+"'].submit();";
            var cssClassName="generic-button";
//          linkAsButton=Builder.node('a',{className:cssClassName,href:jsCode},[Builder.node('span',[Builder.node('span',[caption])]),]);
            linkAsButton = new Element('a',{className:cssClassName,href:jsCode});
            var btnElement = new Element('span');
            var btnInnerElement = new Element('span').update(caption);
            btnElement.update(btnInnerElement);
            linkAsButton.update(btnElement);

            $(elt).parentNode.replaceChild($(linkAsButton),$(elt));
     });
}