/*
 *	Custom Field Validators
 *	
 *	Copyright (c) 2010 AGN Business Internet
 *
 *	Written by Royi Eltink <r.eltink@agn-online.nl>
 */

ValidatorCommonOnSubmit = function() {
	ClearValidatorCallouts();
	var result = SetValidatorCallouts();
	return result;
}

ValidatorValidate = function(val, validationGroup, event) {
	val.isvalid = true;
	if((typeof(val.enabled) == 'undefined' || val.enabled != false) && IsValidationGroupMatch(val, validationGroup)) {
		if(typeof(val.evaluationfunction) == 'function') {
			val.isvalid = val.evaluationfunction(val);
			if(!val.isvalid && Page_InvalidControlToBeFocused == null && typeof(val.focusOnError) == 'string' && val.focusOnError == 't') {
				ValidatorSetFocus(val, event);
			}
		}
	}
	ClearValidatorCallouts();
	SetValidatorCallouts();
	ValidatorUpdateDisplay(val);
}

SetValidatorCallouts = function() {
	var i;
	var pageValid = true;
	for(i = 0; i < Page_Validators.length; i++) {
		var inputControl = document.getElementById(Page_Validators[i].controltovalidate);
		if(!Page_Validators[i].isvalid) {
			if(inputControl) {
				if(pageValid)
					inputControl.focus();
				WebForm_AppendToClassName(inputControl, 'error');
				pageValid = false;
			}
		}
	}

	return pageValid;
}

ClearValidatorCallouts = function() {
	var i;
	var invalidControls = [];
	for(i = 0; i < Page_Validators.length; i++) {
		var inputControl = document.getElementById(Page_Validators[i].controltovalidate);
		WebForm_RemoveClassName(inputControl, 'error');
	}
}

function WebForm_RemoveClassName(element, className) {
	if(element) {
		var current = element.className;
		if(current) {
			if(current.substring(current.length - className.length - 1, current.length) == ' ' + className) {
				element.className = current.substring(0, current.length - className.length - 1);
				return;
			}

			if(current == className) {
				element.className = "";
				return;
			}

			var index = current.indexOf(' ' + className + ' ');
			if(index != -1) {
				// ACK.. index + 1 instead of index to include one space..
				element.className = current.substring(0, index + 1) + current.substring(index + className.length + 2, current.length);
				return;
			}

			// ACK.. className.length + 1 instead of className.length
			if(current.substring(0, className.length + 1) == className + ' ')
				element.className = current.substring(className.length + 1, current.length);
		}
	}
}

function WebForm_AppendToClass(element, className) {
	var current = element.className;
	if(current) {
		if(current.charAt(current.length - 1) != ' ') {
			current += ' ';
		}
		current += className;
	} else {
		current = className;
	}
	element.className = current;
}