function contactSubmit() {
	var f=document.forms[0];
	var bOK=true;

	if (f.txtName.value=="") {
		jQuery.flash.error('Please enter your name');
		f.txtName.focus();
		return;
	}

	if (f.txtContactNo.value=="") {
		 jQuery.flash.error('Please enter a contact telephone number or email address');
		 f.txtContactNo.focus();
		 return;
	}

	if (f.txtEnquiry.value=="") {
		 jQuery.flash.error('Please enter the details of your enquiry');
		 f.txtEnquiry.focus();
		 return;
	}

	if (f.txtSum.value=="") {
		 jQuery.flash.error('Please enter the sum of the two numbers');
		 f.txtSum.focus();
		 return;
	}

	f.txtUserAction.value = 'Send';
	f.submit(); 
}


jQuery.Flash = function(element){
    this.element = $(element);
    this.timeout = undefined;
    
    var content = $('<div class="yui-t1 doc4"></div>');
    
    content.append('<div class="yui-main"><div class="yui-b"><div></div></div></div>');
    content.append('<div class="yui-b"><label></label></div>');
    content.append('<div style="clear: both;"><!-- IE --></div>');
    
    this.element.hide()
        .click(function(){ jQuery.flash.hide(); })
        .hover(function(){ jQuery.flash.onOver(); }, function(){ jQuery.flash.onLeave(); })
        .append(content);
};

jQuery.Flash.version = 1.1;

jQuery.Flash.prototype.onOver = function() {
    this.element.addClass('over');
}

jQuery.Flash.prototype.onLeave = function() {
    this.element.removeClass('over');
    
    if ( this.element.hasClass('expired') ) this.hide();
}

jQuery.Flash.prototype.onTimeout = function() {
    this.element.addClass('expired');
    if ( ! this.element.hasClass('over') ) this.hide();
}

jQuery.Flash.prototype.show = function() {
    this.element.fadeIn(1000);
    
    if ( ! this.element.hasClass('error') )
        this.timeout = window.setTimeout(function(){ jQuery.flash.onTimeout() }, 15000);
}

jQuery.Flash.prototype.hide = function() {
    if ( this.timeout ) {
        clearTimeout(this.timeout);
        this.timeout = undefined;
    }
    
    this.element.fadeOut(1000).removeClass('expired').removeClass('over');
}

jQuery.Flash.prototype.message = function(klass, label, message) {
    this.element.removeClass('expired');
    
    if ( this.element.is(":visible") ) {
        if ( this.timeout ) {
            clearTimeout(this.timeout);
            this.timeout = undefined;
        }
        
        this.element.fadeOut(1000, function(){ jQuery.flash.message(klass, label, message); });
        return;
    }
    
    this.element.attr('class', klass);
    this.element.find('.yui-b div').text(message);
    this.element.find('.yui-b label').text(label);
    
    this.show();
}

jQuery.Flash.prototype.subtle = function(label, message) { this.message('subtle', label, message); }
jQuery.Flash.prototype.error = function(label, message) { this.message('error', label, message); }
jQuery.Flash.prototype.failure = function(label, message) { this.message('failure', label, message); }
jQuery.Flash.prototype.fail = function(label, message) { this.message('failure', label, message); }
jQuery.Flash.prototype.warning = function(label, message) { this.message('warning', label, message); }
jQuery.Flash.prototype.warn = function(label, message) { this.message('warning', label, message); }
jQuery.Flash.prototype.information = function(label, message) { this.message('information', label, message); }
jQuery.Flash.prototype.info = function(label, message) { this.message('information', label, message); }
jQuery.Flash.prototype.success = function(label, message) { this.message('success', label, message); }

$(function(){ jQuery.flash = new jQuery.Flash('#flash'); });