// FORM VALIDATION

function validateContactForm()
{ 
	if (document.contactForm.Firstname.value == "")
	{
        alert("Please enter your first name.\n");
		return false;
    }
	
	if (document.contactForm.Surname.value == "")
	{
        alert("Please enter your surname.\n");
		return false;
    }
	
	if (document.contactForm.Comments.value == "")
	{
        alert("Please enter a comment.\n");
		return false;
    }
		
	if (document.contactForm.Human.value != "")
	{
        alert("Error - form not submitted.\n");
		return false;
    }
	
	else
	{
		return true;
    }   
}




function validateNewsletterForm()
{ 
	if (document.newsletterForm.Firstname.value == "")
	{
        alert("Please enter your first name.\n");
		return false;
    }
	
	if (document.newsletterForm.Surname.value == "")
	{
        alert("Please enter your surname.\n");
		return false;
    }
	
	if (document.newsletterForm.Email.value == "")
	{
        alert("Please enter your email address.\n");
		return false;
    }
	
	var email = document.newsletterForm.Email.value;
	
	if (!(email.indexOf("@") > 0))
	{
        alert("Please enter a valid email address.\n");
		return false;
    }
	
	if (document.newsletterForm.Human.value != "")
	{
        alert("Error - form not submitted.\n");
		return false;
    }
	
	else
	{
		return true;
    }   
}



// MAIN MAVIGATION MOUSEOVERS

function homeOver()
{
	document.home.src="images/NAV_HOME_DOWN.jpg";
}

function homeOut()
{
	
	var location = window.location.pathname;
	if (location == "/trinity/index.php")
	{
		document.home.src="images/NAV_HOME_DOWN.jpg";
	}
	else
	{
		document.home.src="images/NAV_HOME.jpg";
	}
	
	
}



function aboutOver()
{
	document.about.src="images/NAV_ABOUTUS_DOWN.jpg";
}

function aboutOut()
{
	var location = window.location.pathname;
	if (location == "/trinity/about.php")
	{
		document.about.src="images/NAV_ABOUTUS_DOWN.jpg";
	}
	else
	{
		document.about.src="images/NAV_ABOUTUS.jpg";
	}
}



function productsOver()
{
	document.products.src="images/NAV_OURPRODUCTS_DOWN.jpg";
}

function productsOut()
{
	var location = window.location.pathname;
	if (location == "/trinity/products.php")
	{
		document.products.src="images/NAV_OURPRODUCTS_DOWN.jpg";
	}
	else
	{
		document.products.src="images/NAV_OURPRODUCTS.jpg";
	}
}



function communicationOver()
{
	document.communication.src="images/NAV_COMMUNICATION_DOWN.jpg";
}

function communicationOut()
{
	var location = window.location.pathname;
	if (location == "/trinity/articles.php")
	{
		document.communication.src="images/NAV_COMMUNICATION_DOWN.jpg";
	}
	else
	{
		document.communication.src="images/NAV_COMMUNICATION.jpg";
	}

}



function linksOver()
{
	document.links.src="images/NAV_LINKS_DOWN.jpg";
}

function linksOut()
{
	var location = window.location.pathname;
	if (location == "/trinity/links.php")
	{
		document.links.src="images/NAV_LINKS_DOWN.jpg";
	}
	else
	{
		document.links.src="images/NAV_LINKS.jpg";
	}

}



function contactOver()
{
	document.contact.src="images/NAV_CONTACTUS_DOWN.jpg";
}

function contactOut()
{
	var location = window.location.pathname;
	if (location == "/trinity/contact.php")
	{
		document.contact.src="images/NAV_CONTACTUS_DOWN.jpg";
	}
	else
	{
		document.contact.src="images/NAV_CONTACTUS.jpg";

	}
}






// SUBNAVIGATION MOUSEOVERS

function subnav1Over()
{
	document.subnav1.src="images/subnav_down_1.jpg";
}

function subnav1Out()
{
	var location = window.location.pathname;
	/*
	if (location == "/trinity/EIT.php")
	{
		document.subnav1.src="images/subnav_down_1.jpg";
	}
	else
	{
		document.subnav1.src="images/subnav_1.jpg";
	}	
	*/
	
	switch (location)
	{
	case "/trinity/EIT.php":
	case "/trinity/EIT_detail.php":
	case "/trinity/EIT_operation.php":
	case "/trinity/EIT_aspects.php":
		document.subnav1.src="images/subnav_down_1.jpg";
	break
	
	default:
		document.subnav1.src="images/subnav_1.jpg";
	break
	}
}




function subnav2Over()
{
	document.subnav2.src="images/subnav_down_2.jpg";
}

function subnav2Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/FRSP.php":
	case "/trinity/FRSP_detail.php":
	case "/trinity/FRSP_operation.php":
	case "/trinity/FRSP_aspects.php":
		document.subnav2.src="images/subnav_down_2.jpg";
	break
	
	default:
		document.subnav2.src="images/subnav_2.jpg";
	break
	}	
}




function subnav3Over()
{
	document.subnav3.src="images/subnav_down_3.jpg";
}

function subnav3Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/URST.php":
	case "/trinity/URST_detail.php":
	case "/trinity/URST_operation.php":
	case "/trinity/URST_aspects.php":
		document.subnav3.src="images/subnav_down_3.jpg";
	break
	
	default:
		document.subnav3.src="images/subnav_3.jpg";
	break
	}
}




function subnav4Over()
{
	document.subnav4.src="images/subnav_down_4.jpg";
}

function subnav4Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/ESOP.php":
	case "/trinity/ESOP_detail.php":
	case "/trinity/ESOP_operation.php":
	case "/trinity/ESOP_aspects.php":
		document.subnav4.src="images/subnav_down_4.jpg";
	break
	
	default:
		document.subnav4.src="images/subnav_4.jpg";
	break
	}
}




function subnav5Over()
{
	document.subnav5.src="images/subnav_down_5.jpg";
}

function subnav5Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/KEOP.php":
	case "/trinity/KEOP_detail.php":
	case "/trinity/KEOP_operation.php":
	case "/trinity/KEOP_aspects.php":
		document.subnav5.src="images/subnav_down_5.jpg";
	break
	
	default:
		document.subnav5.src="images/subnav_5.jpg";
	break
	}
}




function subnav6Over()
{
	document.subnav6.src="images/subnav_down_6.jpg";
}

function subnav6Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/ESP.php":
	case "/trinity/ESP_detail.php":
	case "/trinity/ESP_operation.php":
	case "/trinity/ESP_aspects.php":
		document.subnav6.src="images/subnav_down_6.jpg";
	break
	
	default:
		document.subnav6.src="images/subnav_6.jpg";
	break
	}
}




function subnav7Over()
{
	document.subnav7.src="images/subnav_down_7.jpg";
}

function subnav7Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/EEST.php":
	case "/trinity/EEST_detail.php":
	case "/trinity/EEST_operation.php":
	case "/trinity/EEST_aspects.php":
		document.subnav7.src="images/subnav_down_7.jpg";
	break
	
	default:
		document.subnav7.src="images/subnav_7.jpg";
	break
	}
}



function subnav8Over()
{
	document.subnav8.src="images/subnav_down_ost.jpg";
}

function subnav8Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/OST.php":
	case "/trinity/OST_detail.php":
	case "/trinity/OST_operation.php":
	case "/trinity/OST_aspects.php":
		document.subnav8.src="images/subnav_down_ost.jpg";
	break
	
	default:
		document.subnav8.src="images/subnav_ost.jpg";
	break
	}
}




function subnav9Over()
{
	document.subnav9.src="images/subnav_down_8.jpg";
}

function subnav9Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/EST.php":
	case "/trinity/EST_detail.php":
	case "/trinity/EST_operation.php":
	case "/trinity/EST_aspects.php":
		document.subnav9.src="images/subnav_down_8.jpg";
	break
	
	default:
		document.subnav9.src="images/subnav_8.jpg";
	break
	}
}



function subnav10Over()
{
	document.subnav10.src="images/subnav_down_9.jpg";
}

function subnav10Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/DEST.php":
	case "/trinity/DEST_detail.php":
	case "/trinity/DEST_operation.php":
	case "/trinity/DEST_aspects.php":
		document.subnav10.src="images/subnav_down_9.jpg";
	break
	
	default:
		document.subnav10.src="images/subnav_9.jpg";
	break
	}
}



function subnav11Over()
{
	document.subnav11.src="images/subnav_down_10.jpg";
}

function subnav11Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/GEST.php":
	case "/trinity/GEST_detail.php":
	case "/trinity/GEST_operation.php":
	case "/trinity/GEST_aspects.php":
		document.subnav11.src="images/subnav_down_10.jpg";
	break
	
	default:
		document.subnav11.src="images/subnav_10.jpg";
	break
	}
}




//SUBNAVIGATION SUBMENU MOUSEOVERS

//DETAIL

function subnavSection1Over()
{
	document.subnav1Section1.src="images/subnav_section_down_1.jpg";
	document.subnav2Section1.src="images/subnav_section_down_1.jpg";
	document.subnav3Section1.src="images/subnav_section_down_1.jpg";
	document.subnav4Section1.src="images/subnav_section_down_1.jpg";
	document.subnav5Section1.src="images/subnav_section_down_1.jpg";
	document.subnav6Section1.src="images/subnav_section_down_1.jpg";
	document.subnav7Section1.src="images/subnav_section_down_1.jpg";
	document.subnav8Section1.src="images/subnav_section_down_1.jpg";
	document.subnav9Section1.src="images/subnav_section_down_1.jpg";
	document.subnav10Section1.src="images/subnav_section_down_1.jpg";
	document.subnav11Section1.src="images/subnav_section_down_1.jpg";

}

function subnavSection1Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/EIT_detail.php":
	case "/trinity/FRSP_detail.php":
	case "/trinity/URST_detail.php":
	case "/trinity/ESOP_detail.php":
	case "/trinity/KEOP_detail.php":
	case "/trinity/ESP_detail.php":
	case "/trinity/EEST_detail.php":
	case "/trinity/OST_detail.php":
	case "/trinity/EST_detail.php":
	case "/trinity/DEST_detail.php":
	case "/trinity/GEST_detail.php":
		document.subnav1Section1.src="images/subnav_section_down_1.jpg";
		document.subnav2Section1.src="images/subnav_section_down_1.jpg";
		document.subnav3Section1.src="images/subnav_section_down_1.jpg";
		document.subnav4Section1.src="images/subnav_section_down_1.jpg";
		document.subnav5Section1.src="images/subnav_section_down_1.jpg";
		document.subnav6Section1.src="images/subnav_section_down_1.jpg";
		document.subnav7Section1.src="images/subnav_section_down_1.jpg";
		document.subnav8Section1.src="images/subnav_section_down_1.jpg";
		document.subnav9Section1.src="images/subnav_section_down_1.jpg";
		document.subnav10Section1.src="images/subnav_section_down_1.jpg";
		document.subnav10Section1.src="images/subnav_section_down_1.jpg";
	break
	
	default:
		document.subnav1Section1.src="images/subnav_section_1.jpg";
		document.subnav2Section1.src="images/subnav_section_1.jpg";
		document.subnav3Section1.src="images/subnav_section_1.jpg";
		document.subnav4Section1.src="images/subnav_section_1.jpg";
		document.subnav5Section1.src="images/subnav_section_1.jpg";
		document.subnav6Section1.src="images/subnav_section_1.jpg";
		document.subnav7Section1.src="images/subnav_section_1.jpg";
		document.subnav8Section1.src="images/subnav_section_1.jpg";
		document.subnav9Section1.src="images/subnav_section_1.jpg";
		document.subnav10Section1.src="images/subnav_section_1.jpg";
		document.subnav11Section1.src="images/subnav_section_1.jpg";
	break
	}	
	
	/*
	document.subnav1Section1.src="images/subnav_section_1.jpg";
	document.subnav2Section1.src="images/subnav_section_1.jpg";
	document.subnav3Section1.src="images/subnav_section_1.jpg";
	document.subnav4Section1.src="images/subnav_section_1.jpg";
	document.subnav5Section1.src="images/subnav_section_1.jpg";
	document.subnav6Section1.src="images/subnav_section_1.jpg";
	document.subnav7Section1.src="images/subnav_section_1.jpg";
	document.subnav8Section1.src="images/subnav_section_1.jpg";
	document.subnav9Section1.src="images/subnav_section_1.jpg";
	document.subnav10Section1.src="images/subnav_section_1.jpg";
	document.subnav11Section1.src="images/subnav_section_1.jpg";
	*/
}


//OPERATION

function subnavSection2Over()
{
	document.subnav1Section2.src="images/subnav_section_down_2.jpg";
	document.subnav2Section2.src="images/subnav_section_down_2.jpg";
	document.subnav3Section2.src="images/subnav_section_down_2.jpg";
	document.subnav4Section2.src="images/subnav_section_down_2.jpg";
	document.subnav5Section2.src="images/subnav_section_down_2.jpg";
	document.subnav6Section2.src="images/subnav_section_down_2.jpg";
	document.subnav7Section2.src="images/subnav_section_down_2.jpg";
	document.subnav8Section2.src="images/subnav_section_down_2.jpg";
	document.subnav9Section2.src="images/subnav_section_down_2.jpg";
	document.subnav10Section2.src="images/subnav_section_down_2.jpg";
	document.subnav11Section2.src="images/subnav_section_down_2.jpg";
}

function subnavSection2Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/EIT_operation.php":
	case "/trinity/FRSP_operation.php":
	case "/trinity/URST_operation.php":
	case "/trinity/ESOP_operation.php":
	case "/trinity/KEOP_operation.php":
	case "/trinity/ESP_operation.php":
	case "/trinity/EEST_operation.php":
	case "/trinity/OST_operation.php":
	case "/trinity/EST_operation.php":
	case "/trinity/DEST_operation.php":
	case "/trinity/GEST_operation.php":
		document.subnav1Section2.src="images/subnav_section_down_2.jpg";
		document.subnav2Section2.src="images/subnav_section_down_2.jpg";
		document.subnav3Section2.src="images/subnav_section_down_2.jpg";
		document.subnav4Section2.src="images/subnav_section_down_2.jpg";
		document.subnav5Section2.src="images/subnav_section_down_2.jpg";
		document.subnav6Section2.src="images/subnav_section_down_2.jpg";
		document.subnav7Section2.src="images/subnav_section_down_2.jpg";
		document.subnav8Section2.src="images/subnav_section_down_2.jpg";
		document.subnav9Section2.src="images/subnav_section_down_2.jpg";
		document.subnav10Section2.src="images/subnav_section_down_2.jpg";
		document.subnav11Section2.src="images/subnav_section_down_2.jpg";
	break
	
	default:
		document.subnav1Section2.src="images/subnav_section_2.jpg";
		document.subnav2Section2.src="images/subnav_section_2.jpg";
		document.subnav3Section2.src="images/subnav_section_2.jpg";
		document.subnav4Section2.src="images/subnav_section_2.jpg";
		document.subnav5Section2.src="images/subnav_section_2.jpg";
		document.subnav6Section2.src="images/subnav_section_2.jpg";
		document.subnav7Section2.src="images/subnav_section_2.jpg";
		document.subnav8Section2.src="images/subnav_section_2.jpg";
		document.subnav9Section2.src="images/subnav_section_2.jpg";
		document.subnav10Section2.src="images/subnav_section_2.jpg";
		document.subnav11Section2.src="images/subnav_section_2.jpg";
	break
	}	
}



//TAXATION ASPECTS

function subnavSection3Over()
{
	document.subnav1Section3.src="images/subnav_section_down_3.jpg";
	document.subnav2Section3.src="images/subnav_section_down_3.jpg";
	document.subnav3Section3.src="images/subnav_section_down_3.jpg";
	document.subnav4Section3.src="images/subnav_section_down_3.jpg";
	document.subnav5Section3.src="images/subnav_section_down_3.jpg";
	document.subnav6Section3.src="images/subnav_section_down_3.jpg";
	document.subnav7Section3.src="images/subnav_section_down_3.jpg";
	document.subnav8Section3.src="images/subnav_section_down_3.jpg";
	document.subnav9Section3.src="images/subnav_section_down_3.jpg";
	document.subnav10Section3.src="images/subnav_section_down_3.jpg";
	document.subnav11Section3.src="images/subnav_section_down_3.jpg";
}


function subnavSection3Out()
{
	var location = window.location.pathname;	
	switch (location)
	{
	case "/trinity/EIT_aspects.php":
	case "/trinity/FRSP_aspects.php":
	case "/trinity/URST_aspects.php":
	case "/trinity/ESOP_aspects.php":
	case "/trinity/KEOP_aspects.php":
	case "/trinity/ESP_aspects.php":
	case "/trinity/EEST_aspects.php":
	case "/trinity/OST_aspects.php":
	case "/trinity/EST_aspects.php":
	case "/trinity/DEST_aspects.php":
	case "/trinity/GEST_aspects.php":
		document.subnav1Section3.src="images/subnav_section_down_3.jpg";
		document.subnav2Section3.src="images/subnav_section_down_3.jpg";
		document.subnav3Section3.src="images/subnav_section_down_3.jpg";
		document.subnav4Section3.src="images/subnav_section_down_3.jpg";
		document.subnav5Section3.src="images/subnav_section_down_3.jpg";
		document.subnav6Section3.src="images/subnav_section_down_3.jpg";
		document.subnav7Section3.src="images/subnav_section_down_3.jpg";
		document.subnav8Section3.src="images/subnav_section_down_3.jpg";
		document.subnav9Section3.src="images/subnav_section_down_3.jpg";
		document.subnav10Section3.src="images/subnav_section_down_3.jpg";
		document.subnav11Section3.src="images/subnav_section_down_3.jpg";
	break
	
	default:
		document.subnav1Section3.src="images/subnav_section_3.jpg";
		document.subnav2Section3.src="images/subnav_section_3.jpg";
		document.subnav3Section3.src="images/subnav_section_3.jpg";
		document.subnav4Section3.src="images/subnav_section_3.jpg";
		document.subnav6Section3.src="images/subnav_section_3.jpg";
		document.subnav6Section3.src="images/subnav_section_3.jpg";
		document.subnav7Section3.src="images/subnav_section_3.jpg";
		document.subnav8Section3.src="images/subnav_section_3.jpg";
		document.subnav9Section3.src="images/subnav_section_3.jpg";
		document.subnav10Section3.src="images/subnav_section_3.jpg";
		document.subnav11Section3.src="images/subnav_section_3.jpg";
	break
	}	
}