//BROWSER DETECTION
var ns4 = document.layers;
var ns6 = document.getElementById && !document.all;
var ie4 = document.all;
 

//FIELDS
function imgField(field, img){
	if(field.value == "cuvant cheie") field.value = "";
	field.style.backgroundImage = "url("+img+")";
	if(img.indexOf("over")>0) bgcolor = "#ffffe9";
						 else bgcolor = "#FFFFFF";
	field.style.backgroundColor = bgcolor;
}

function imgField2(field, img){
	//bgcolor
		if(img == "over") bgcolor = "#FFFFFF";
					 else bgcolor = "#FFFFFF";
		field.style.backgroundColor = bgcolor;
		
	//border color
		if(img == "over") border_color = "#666666";
					 else border_color = "#999999";
		field.style.borderColor = border_color;
}

//BUTS
function imgBut(but, img){
	but.src = img;
}


//Reset Form
function resetForm(formName){
	if(ns6) form = eval("document.getElementById('"+formName+"')");
	else if(ns4) form = eval("document."+formName);
	else form = eval("document.all."+formName);
	form.reset();
}



function focus2(field){
	if(field.value == 0) field.value = '';
}	


function blur2(field){
	if(field.value == '') field.value = '0';
}	


function fieldValue(field_name){
	if(ns6) field = eval("document.getElementById('"+field_name+"')");
	else if(ns4) field = eval("document."+field_name);
	else field = eval("document.all."+field_name);
	return field.value;
}

function setFieldValue(field_name, val){
	if(ns6) field = eval("document.getElementById('"+field_name+"')");
	else if(ns4) field = eval("document."+field_name);
	else field = eval("document.all."+field_name);
	return field.value;
	field.value = val;
}

function writeIn(field_name, val){
	if(ns6) field = eval("document.getElementById('"+field_name+"')");
	else if(ns4) field = eval("document."+field_name);
	else field = eval("document.all."+field_name);
	field.innerHTML = val;
}



function formatNR(nr, dec)
{
str = "" + Math.round(eval(nr) * Math.pow(10,dec));
while(str.length < dec)
	str = "0" + str;
decidx = str.length - dec;
tmp = str.substring(0,decidx);
if(tmp == '')
	tmp = '0';
if(dec > 0)
	tmp = tmp + '.' + str.substring(decidx, str.length);
return(tmp);
}



function getkey(e)
{
if (window.event)
   return window.event.keyCode;
else if (e)
   return e.which;
else
   return null;
}


function goodchars(e, goods)
{
var key, keychar;
key = getkey(e);
if (key == null) return true;

// get character
keychar = String.fromCharCode(key);
keychar = keychar.toLowerCase();
goods = goods.toLowerCase();

// check goodkeys
if (goods.indexOf(keychar) != -1)
	return true;

// control keys
if ( key==null || key==0 || key==8 || key==9 || key==13 || key==27 )
   return true;

// else return false
return false;
}



function getSelectedRadio(buttonGroup) {
   // returns the array number of the selected radio button or -1 if no button is selected
   if (buttonGroup[0]) { // if the button group is an array (one button is not an array)
      for (var i=0; i<buttonGroup.length; i++) {
         if (buttonGroup[i].checked) {
            return i
         }
      }
   } else {
      if (buttonGroup.checked) { return 0; } // if the one button is checked, return zero
   }
   // if we get to this point, no radio button is selected
   return -1;
} // Ends the "getSelectedRadio" function

function getSelectedRadioValue(buttonGroup) {
   // returns the value of the selected radio button or "" if no button is selected
   var i = getSelectedRadio(buttonGroup);
   if (i == -1) {
      return "";
   } else {
      if (buttonGroup[i]) { // Make sure the button group is an array (not just one button)
         return buttonGroup[i].value;
      } else { // The button group is just the one button, and it is checked
         return buttonGroup.value;
      }
   }
} // Ends the "getSelectedRadioValue" function

function getSelectedCheckbox(buttonGroup) {
   // Go through all the check boxes. return an array of all the ones
   // that are selected (their position numbers). if no boxes were checked,
   // returned array will be empty (length will be zero)
   var retArr = new Array();
   var lastElement = 0;
   if (buttonGroup[0]) { // if the button group is an array (one check box is not an array)
      for (var i=0; i<buttonGroup.length; i++) {
         if (buttonGroup[i].checked) {
            retArr.length = lastElement;
            retArr[lastElement] = i;
            lastElement++;
         }
      }
   } else { // There is only one check box (it's not an array)
      if (buttonGroup.checked) { // if the one check box is checked
         retArr.length = lastElement;
         retArr[lastElement] = 0; // return zero as the only array value
      }
   }
   return retArr;
} // Ends the "getSelectedCheckbox" function

function getSelectedCheckboxValue(buttonGroup) {
   // return an array of values selected in the check box group. if no boxes
   // were checked, returned array will be empty (length will be zero)
   var retArr = new Array(); // set up empty array for the return values
   var selectedItems = getSelectedCheckbox(buttonGroup);
   if (selectedItems.length != 0) { // if there was something selected
      retArr.length = selectedItems.length;
      for (var i=0; i<selectedItems.length; i++) {
         if (buttonGroup[selectedItems[i]]) { // Make sure it's an array
            retArr[i] = buttonGroup[selectedItems[i]].value;
         } else { // It's not an array (there's just one check box and it's selected)
            retArr[i] = buttonGroup.value;// return that value
         }
      }
   }
   return retArr;
} // Ends the "getSelectedCheckBoxValue" function
  

//Email Validation
function emailValid(email)
{
  var result = false
  var theStr = new String(email)
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function formSubmit(form, act){
	document.forms[form].action = act;
	document.forms[form].submit();
}





function fieldOb(field_name){
	if(ns6) field = eval("document.getElementById('"+field_name+"')");
	else if(ns4) field = eval("document."+field_name);
	else field = eval("document.all."+field_name);
	return field;
}

function changeRowColor(row, color){
	rOb = fieldOb(row);
	rOb.bgColor = color;  
}






//Validates a field
function ValidateField(elem, name)
{
	if (elem != undefined)
	{
		if((elem.value == '')||(elem.value == 0))	
		{
	    		alert('INCOMPLETE!');
	    		elem.focus();
	   	 		return(false);
	   	}
		else if(name.indexOf('email') != -1)
		{
				 	if(!emailValid(elem.value))
				 	{
						alert('Invalid E-mail address !');
						elem.focus();
	   	 				return(false);
					}
		}
	}
	else
	{
		alert (elem);
		return false;
	}
	return(true);
}

//Just Validates a field without (alert & focus)
function JustValidateField(elem)
{
	if((elem.value == '')||(elem.value == 0))	
		return(false);
	else if(name.indexOf('email') != -1)
	{
	 	if (!emailValid(elem.value))
	 	{
			return(false);
		}
	}
	return(true);
}


//Validate form for Mandatory fields to be filled properly
function Validate(form, fields)
{
   	mandatory_fields = fields.split(',');
	for(i=0; i<mandatory_fields.length; i++)
	{
		if(mandatory_fields[i].indexOf('|'))
		{
			//groupped fields (at least one of them must be filled/selected)
			mandatory_group_fields = mandatory_fields[i].split('|');
			valid = 0;
			for(j=0; j<mandatory_group_fields.length; j++)
			{
				elem = eval('form.' + mandatory_group_fields[j]);
				if (elem != undefined)
				{
					if(ValidateField(elem, mandatory_group_fields[j]) ) valid = 1;
					else return(false);
				}
			}
			if(!valid)
			{
				//no fields filled
				elem = eval('form.' + mandatory_group_fields[0]);
				if (elem != undefined)
					if(!ValidateField(elem, mandatory_group_fields[0])) 
						return(false);
			}
		}
		else
		{
			//single field
			elem = eval('form.' + mandatory_fields[i]);
			if(!ValidateField(elem, mandatory_fields[i])) return(false);
		}
		
	}//for
	return(true);
}

function GotoPage(pag, GET){
	if(ns6) form = eval("document.getElementById('frms')");
	else if(ns4) form = eval("document.frms");
	else form = eval("document.all.frms");
	form.action = PHP_SELF + "?"+GET+"&pag="+pag;
	form.submit();
}







function ValidateLogin(form){
   	if(form.login_user.value == '')	{
    		alert('Insert Administrator!');
    		form.login_user.focus();
   	 	return(false);
   	}
   	if(form.login_pass.value == '')	{
    		alert('Insert Password!');
    		form.login_pass.focus();
   	 	return(false);
   	}
	return(true);
}

function ValidateLoginUser(form){
   	if(form.login_user.value == '')	{
   		alert('Insert Email Address!');
   		form.login_user.focus();
   	 	return(false);
   	}else if(!emailValid(form.login_user.value)){
   		alert('Invalid Email Address!');
   		form.login_user.focus();
   	 	return(false);
	}
   	if(form.login_pass.value == '')	{
   		alert('Insert Password!');
   		form.login_pass.focus();
   	 	return(false);
   	}
	return(true);
}



function checkFormPass(form){
   	if(form.pass_veche.value == '')	{
    		alert('Enter current password!');
    		form.pass_veche.focus();
   	 	return(false);
   	}
	
   	if(form.pass_noua_1.value == '')	{
    		alert('Enter new password!');
    		form.pass_noua_1.focus();
   	 	return(false);
   	}
	
   	if(form.pass_noua_2.value == '')	{
    		alert('Reenter new password!');
    		form.pass_noua_2.focus();
   	 	return(false);
   	}
	
   	if(form.pass_noua_1.value != form.pass_noua_2.value)	{
    		alert('Error! You have reentered a different new password!');
    		form.pass_noua_1.focus();
   	 	return(false);
   	}

	return(true);
}



function ValidateProduct(form){
	if(!Validate(form, 'name,price')) return false;

	if(form.img.value != '') {
		allowed_file_types = 'jpg,gif,bmp,png';
		err_msg = 'Warning: Image file type not allowed. Only "'+allowed_file_types+'" extensions are allowed.';
		if(!ValidateFile(form, 'img')) return false;
	}
	
	return true;
}

function ForgotPassword(){
	user = document.forms['formLogin'].login_user;
	form = document.forms['formLogin'];
	if(user.value == ''){
   		alert('First insert your email address you used for registration!');
   		user.focus();
	}else if(!emailValid(user.value)){
   		alert('Invalid email address!');
   		user.focus();
	}else{
		document.location = '?' + GET + "&forgot_password=" + escape(user.value);
	}
}


function ChangeOptions(opt){
   	opts = opt.split(',');
	
	for(i=0; i<4; i++){
		f = eval("document.forms['formProduct'].option"+(i+1));
		f.value = '';
	}
	
	for(i=0; i<opts.length; i++){
		f = eval("document.forms['formProduct'].option"+(i+1));
		f.value = opts[i];
	}
}

function AddToCart(id){
	opt = fieldValue('options');
	if(opt != '') opt = '&option=' + opt;
	document.location='?add_to_cart=' + id + '' + opt;	
}

function ValidateFis(form, fis, type){
	if(form[fis].value == '') {
		alert('No file specified.');
		return false;
	}
	return true;
}

function imageClick(nr){	
	for (i = 0; i < 30; i++) {
		field = getField('photo_' + i);

		if (ns4 || ns6) { if (field) field.setAttribute("class", "hidden_photo"); }
		else if (typeof(field) != 'undefined') field.className = 'hidden_photo';
	}

	field = getField('photo_' + nr);
	if (ns4 || ns6) field.setAttribute("class", "");
	else field.className = '';
}

function calculateYield(){	
	yield_field = getField('YIELD');
	field = getField('PRICE'); price = field.value;
	field = getField('RENT');  rent = field.value;
	field = getField('RATES');  rates = field.value;
	if (rates == '')
		rates = 0;

	if (price != '' && price > 0 && rent != '' && rent > 0) {
		value = (((rent * 52) - rates) / price) * 100;
		value = value.toFixed(2) + '%';
	}
	else value = '';
	yield_field.value = value; 
}

function getField(field_name){	
	if(ns6) field = eval("document.getElementById('"+field_name+"')");
	else if(ns4) field = eval("document."+field_name);
	else field = eval("document.all."+field_name);

	return field;
}