// JavaScript Document

function randomImage() {

	index = Math.floor(Math.random() * 4)+1;
	document.write("<img src='syspix/bpahead" + index + ".jpg' alt='Blue Pelican Associates' width=880 height=146  border=0 />");

}

function hideSubmenu(id) { 
	if (document.getElementById("submenu" + id)!=null) { // indien bestaat submenu verbergen
	document.getElementById("submenu" + id).style.visibility="hidden" }
}

function showSubmenu(id) {
	for (smid = 0; smid < (10); smid++) { // alle submenus verbergen
		 hideSubmenu(smid)
	}
	if (document.getElementById("submenu" + id)!=null) { // indien bestaat submenu weergeven 	
		document.getElementById("submenu" + id).style.visibility=""
	}
}