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


function changeImages() {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<changeImages.arguments.length; i+=2) {
document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
}
}
}
var preloadFlag = false;
function preloadImages() {
if (document.images) {
tool_01_over = newImage("../img/tool_01_over.gif");
tool_02_over = newImage("../img/tool_02_over.gif");
tool_03_over = newImage("../img/tool_03_over.gif");
tool_04_over = newImage("../img/tool_04_over.gif");
tool_05_over = newImage("../img/tool_05_over.gif");
tool_06_over = newImage("../img/tool_06_over.gif");
tool_07_over = newImage("../img/tool_07_over.gif");
preloadFlag = true;
}
}

var openedMenu = null;
var submenuTimer;


function menuOvr(id){
if (openedMenu && openedMenu != id)
CloseMenu(id);
OpenMenu(id);
}


function OpenMenu(id){
if((navigator.appVersion.indexOf("Win") >= 0)&&(navigator.appName.indexOf("Microsoft") >= 0)){
	if ( document.getElementById )
	document.getElementById( id ).style.visibility = 'visible' 
	else if ( document.all )
	document.all( id ).style.visibility = 'visible' 
	else if ( document.layers )
	document.layers[ id ].visibility = 'show' 
	clearTimeout(submenuTimer);
	openedMenu = id;
}
}

function CloseMenu(){
if((navigator.appVersion.indexOf("Win") >= 0)&&(navigator.appName.indexOf("Microsoft") >= 0)){
	if ( document.getElementById )
	document.getElementById( openedMenu ).style.visibility = 'hidden' 
	else if ( document.all ) 
	document.all( openedMenu ).style.visibility = 'hidden' 
	else if ( document.layers )
	document.layers[ openedMenu ].visibility = 'hide' 
	openedMenu = null;
}
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
window.open(theURL,winName,features);
}