var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;

function hidelayer(lay) {
if (ie4) {document.all[lay].style.visibility = "hidden";}
if (ns4) {document.layers[lay].visibility = "hide";}
if (ns6) {document.getElementById([lay]).style.visibility = "hidden";}

}
function showlayer(lay) {
if (ie4) {document.all[lay].style.visibility = "visible";}
if (ns4) {document.layers[lay].visibility = "show";}
if (ns6) {document.getElementById([lay]).style.visibility = "visible";}

}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImage(imageName,imageURL){
document[imageName].src = imageURL
}

function setClass(myID,myClass){
if (ie4) {document.all[myID].className = myClass;}
if (ns4) {document.layers[myID].className = myClass;}
if (ns6) {document.getElementById([myID]).className = myClass;}
}


function webdev_on(status) {
if(status == "on"){
	document.webdev_button.src='/images/p_webdev_o.gif';
	}
else if(status == "off"){
	document.webdev_button.src='/images/p_webdev_n.gif';
	}
}

function mktcol_on(status) {
if(status == "on"){
	document.mktcol_button.src='/images/p_marketing_o.gif';
	}
else if(status == "off"){
	document.mktcol_button.src='/images/p_marketing_n.gif';
	}
}

function phil_on(status) {
if(status == "on"){
	document.phil_button.src='/images/a_phil_o.gif';
	}
else if(status == "off"){
	document.phil_button.src='/images/a_phil_n.gif';
	}
}

function clients_on(status) {
if(status == "on"){
	document.clients_button.src='/images/a_clients_o.gif';
	}
else if(status == "off"){
	document.clients_button.src='/images/a_clients_n.gif';
	}
}


function news_on(status) {
if(status == "on"){
	document.news_button.src='/images/a_news_o.gif';
	}
else if(status == "off"){
	document.news_button.src='/images/a_news_n.gif';
	}
}

function case_on(status) {
if(status == "on"){
	document.case_button.src='/images/p_casestudies_o.gif';
	}
else if(status == "off"){
	document.case_button.src='/images/p_casestudies_n.gif';
	}
}
	
function contact_on(status) {
if(status == "on"){
	document.contact_button.src='/images/s_contact_o.gif';
	}
else if(status == "off"){
	document.contact_button.src='/images/s_contact_n.gif';
	}
}

function crew_on(status) {
if(status == "on"){
	document.crew_button.src='/images/s_crew_o.gif';
	}
else if(status == "off"){
	document.crew_button.src='/images/s_crew_n.gif';
	}
}

function home_on(status) {
if(status == "on"){
	document.home_button.src='/images/home_o.gif';
	}
else if(status == "off"){
	document.home_button.src='/images/homen_n.gif';
	}
}

function square_on(status,button_name) {
var myButton=document[button_name]
if(status == "on"){
	myButton.src='/images/bluebuttonover.gif';
	}
else if(status == "off"){
	myButton.src='/images/bluebuttonnorm.gif';
	}
}

function launch_on(status,button_name) {
var myButton=document[button_name]
if(status == "on"){
	myButton.src='/images/launchwebover.gif.gif';
	}
else if(status == "off"){
	myButton.src='/images/launchweb.gif';
	}
}
IE5=NN4=NN6=OPA=false
if(navigator.userAgent.toLowerCase().indexOf("opera")+1)OPA=true
else if(document.all)IE5=true
else if(document.layers)NN4=true
else if(document.getElementById)NN6=true