balk11 = new Image; balk11.src= "balk11.gif";
balk10 = new Image; balk10.src= "balk10.gif";
balk21 = new Image; balk21.src= "balk21.gif";
balk20 = new Image; balk20.src= "balk20.gif";

function hide(id){
	if (document.layers) parent.window['linker'].document.layers[id].visibility = "hide"
	else if (document.all) parent.window['linker'].document.all[id].style.visibility = "hidden"
}
function show(id){
	if (document.layers) parent.window['linker'].document.layers[id].visibility = "show"
	else if (document.all) parent.window['linker'].document.all[id].style.visibility = "visible"
}

function swap(a,b){
eval("document." + a + ".src=" + b + ".src")
}


function rBalk1(){
	swap("balk1","balk10")
//	swap("servcl","servclient")
}
function rBalk2(){
	swap("balk2","balk20")
//	swap("servcl","servclient")
}
function rClient(){
	swap("client","clients")
	swap("cp","clientpro")
}
function rProc(){
	swap("proc","process")
	swap("cp","clientpro")
	swap("pc","procompany")
}
function rComp(){
	swap("comp","company")
	swap("pc","procompany")
	swap("cc","cocontact")
}
function rCon(){
	swap('cont','contact')
	//swap('cc','cocontact')	
}

function refresh(){
//	rBalk1()
//	rBalk2()
//	rProc()
//	rComp()
//	rCon()
	hide("sub1")
	hide("sub2")
	hide("sub3")
	hide("sub4")
}

function protect(e) {
if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)) {
	alert("Kopiëren niet toegestaan!!");
	return false;
}
else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2 || event.button == 3)) {
	alert("Kopiëren niet toegestaan!!");
	return false;
}
return true;
}

function trap() {
if(document.images)
for(i=0;i<document.images.length;i++)
document.images[i].onmousedown = protect;
}