//Validation
function validateField(field_id){
	var validated = false;
	var first_value = document.getElementById(field_id).value;
    first_value = first_value.trim();
	if(first_value.length == 0){
//		focusOnElement(field_id);
		validated = false;
	}else{
		validated = true;
	}	
	return validated;
}

function validateEmailField(field_id){
    var validated = false;
    var fieldValidated = validateField(field_id);
    if(fieldValidated){
        var validRegExp = /^.+@.+\..+$/;
        var strEmail = document.getElementById(field_id).value;
        if (strEmail.search(validRegExp) == -1){
//		    focusOnElement(field_id);
		    validated = false;
        }else{
		    validated = true;
        }
   }
   return validated;
}

function isIntegerById(id){	
    var fieldValidated = validateField(id);
    if(fieldValidated){
		var s = document.getElementById(id).value;
		var i;
	    for (i = 0; i < s.length; i++){   
	        // Check that current character is number.
	        var c = s.charAt(i);
	        if (((c < "0") || (c > "9"))) return false;
	    }
	    // All characters are numbers.
	    return true;
	}else{
		return false;
	}
	
}

function IsNumericById(id){
	var fieldValidated = validateField(id);
    if(fieldValidated){

		var sText = document.getElementById(id).value;
	    var ValidChars = "0123456789.";
	    var IsNumber=true;
	    var Char;
	 
	    for (i = 0; i < sText.length && IsNumber == true; i++){ 
	      Char = sText.charAt(i); 
	      if (ValidChars.indexOf(Char) == -1) 
	         {
	         IsNumber = false;
	         }
	    }
	    return IsNumber;
	}else{
		return false
	}       
}


function IsNumeric(sText){
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;
 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;   
}


//Date validation helper scripts
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}



function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDateById(id){
	var s = document.getElementById(id).value;
	return isDate(s);
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}
//END - Date validation helper scripts

function focusOnElement(element_id){
	document.getElementById(element_id).focus();
}

function showHideTag(field_id, show){
	if(show){
		document.getElementById(field_id).style.display = "";
	}else{
		document.getElementById(field_id).style.display = "none";
	}
}
//End Validation

//Extend all string objecs with a trim function
String.prototype.trim = function() {
    return this.replace(/^\s+|\s+$/g,"");
}



    var errror_messages = "";
    var error_field_ids = "";
    
    
    function add_error_message(error_msg, field_id){
        errror_messages += error_msg+" <br /> ";
        error_field_ids += field_id+",";
    }
    
    function validate_registration_form(email_exists){
        var error = false;
        
        var rb_first_name = document.getElementById('rb_first_name').value;
        var rb_last_name = document.getElementById('rb_last_name').value;
        var rb_email = document.getElementById('rb_email').value;
        var rb_company_name = document.getElementById('rb_company_name').value;
        var rb_phone = document.getElementById('rb_phone').value;
        var rb_zip = document.getElementById('rb_zip').value;
        var rb_password = document.getElementById('rb_password').value;
        var rb_confirm_password = document.getElementById('rb_confirm_password').value;
        
        //Trim all field values
        rb_first_name = rb_first_name.trim();        
        rb_last_name = rb_last_name.trim();
        rb_email = rb_email.trim();
        rb_company_name = rb_company_name.trim();
        rb_phone = rb_phone.trim();
        rb_zip = rb_zip.trim();
        rb_password = rb_password.trim();
        rb_confirm_password = rb_confirm_password.trim();
        
        if(rb_first_name=='' || rb_first_name.length<2){
            error = true;
            add_error_message('Please enter your first name', 'rb_first_name');
        }
        
        if(rb_last_name=='' || rb_last_name.length<2){
            error = true;
            add_error_message('Please enter your last name', 'rb_last_name');
        }
        
        var email_validated = validateEmailField('rb_email');
        if(!email_validated){
            error = true;
            add_error_message('Please enter a valid email', 'rb_email');        
        }

        if(email_exists){
            error = true;
            add_error_message('Email already exists in the system', 'rb_email');
        }
    
    
    
        if(rb_phone=='' || rb_phone.length<3){
            error = true;
            add_error_message('Please enter your phone number', 'rb_phone');
        }

        if(rb_zip=='' || rb_zip.length<3){
            error = true;
            add_error_message('Please enter your zip code', 'rb_zip');
        }
        
        if(rb_password=='' || rb_password.length<=4){
            error = true;
            add_error_message('Please enter a password with minimum 4 characters', 'rb_password');
        }else{
            if(rb_password!=rb_confirm_password){
                error = true;
                add_error_message('The password and the confirmation password are not same', 'rb_confirm_password');
            }
        }
        return error;
    }

    
    function display_error_messages(){        
        var error_messages_div = document.getElementById('error_messages');
        if(error_messages_div){            
            make_error_fields_red(false);
            var sorry_message = "Sorry, but an error has been made:<br /><br />";
            
            error_messages_div.innerHTML = sorry_message+'<div style="padding-left:10px;">'+errror_messages+"</div>";
            error_messages_div.style.display="";
            errror_messages = "";
        }    
    }
    
    function make_error_fields_red(reset){
        var error_ids = error_field_ids.split(',');
        if(error_ids.length>0){            
            for(i=0;i<error_ids.length-1;i++){
                var field_id = error_ids[i];                
                var error_field = document.getElementById(field_id);
                if(error_field){
                    if(reset){
                        error_field.style.background="";
                    }else{
                        error_field.style.background="#FFCCCC";
                    }                
                }            
            }
        }
        
        if(reset){
            error_field_ids = "";
        }    
    }

    function validate_quote(customer_id){
        if(customer_id.trim()==''){            
            check_if_email_available();
        } else {
            //The customer is already registered so there is no need of calling the ajax function
            validate_quote_local(customer_id);
        }    
    }

    
    function validate_quote_local(customer_id, email_exists){
        make_error_fields_red(true);
        var quote_form_error = validate_quote_form();
        
        if(customer_id.trim()==''){
            var registration_form_error = validate_registration_form(email_exists);
        } else {
            var registration_form_error = false;
        }
        
        if(!registration_form_error && !quote_form_error){
            var form = document.getElementById('frm_quote');
            if(form){                
                document.getElementById('hidden_fields').innerHTML = '<input type="hidden" name="btn_request_quote" value="Request Quote" >';
                form.submit();
            }
        }else{
            display_error_messages();
        }
    }
    
    function check_if_email_available(){
        var email_obj = document.getElementById("rb_email");
        var email = email_obj.value;
        
        //If there is a valid email entered then check if it si available else there is no need
        var email_validated = validateEmailField('rb_email');
        if(email_validated){
            var url = "check_if_email_available.php";
            var params = "email="+email;
            makePostAjaxRequest(url, params, 'check_if_email_available_handler', false);        
        } else {
            validate_quote_local('', false);
        }        
    }

    function check_if_email_available_handler(data){
        if (data == 'true') {
            //This email already exists
            validate_quote_local('', true);
        }else if (data == 'false') {
            //The email does not exist    
            validate_quote_local('', false);
        }    
    }
    


//AJAX AJAX POST REQUEST
function makePostAjaxRequest(url, params, callback_function, return_xml)
{
   var http_request = false;

   if (window.XMLHttpRequest) { // Mozilla, Safari,...
       http_request = new XMLHttpRequest();
       if (http_request.overrideMimeType) {
           http_request.overrideMimeType('text/xml');
       }
   } else if (window.ActiveXObject) { // IE
       try {
           http_request = new ActiveXObject("Msxml2.XMLHTTP");
       } catch (e) {
           try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
           } catch (e) {}
       }
   }

   if (!http_request) {
       alert('Unfortunatelly you browser doesn\'t support this feature.Try another browser please');
       return false;
   }
   
   http_request.open('POST', url, true);
   
   //Send the proper header information along with the request
   http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
   http_request.setRequestHeader("Content-length", params.length);
   http_request.setRequestHeader("Connection", "close");

   http_request.onreadystatechange = function() {
       if (http_request.readyState == 4) {
           if (http_request.status == 200) {
               if (return_xml) {
                   eval(callback_function + '(http_request.responseXML)');
               } else {                       
                   eval(callback_function + '(http_request.responseText)');
               }
           } else {
               //alert('There was a problem with the request.(Code: ' + http_request.status + ')');
           }
       }

   }
   
   http_request.send(params);   
}
//END AJAX POST REQUEST


function clear_comment_box(){
    var starting_comment = "Enter Here, comments, additional specs, or tell us what you want to pay!";
    var comment_obj = document.getElementById('txt_add_comment');
    if(comment_obj){
        var comment = comment_obj.innerHTML;        
        if(comment==starting_comment){
            comment_obj.innerHTML = "";
        }
    }

}