var separator = "_";
function nav_over(obj) {
	var srcstr, newstr;
	srcstr = obj.src;
	index = srcstr.lastIndexOf(separator);
	newstr = srcstr.substr(0, index + 1) + "on.gif";
	obj.src = newstr;
}

function nav_off(obj) {
	var srcstr, newstr;
	srcstr = obj.src;
	index = srcstr.lastIndexOf(separator);
	newstr = srcstr.substr(0, index + 1) + "off.gif";
	obj.src = newstr;
}

function viewDetails(viewURL){
	var viewWin = window.open(viewURL,'_details','scrollbars=no,resizable=1,width=650,height=400');
	if( !viewWin ) { return true; } //popup blockers should not cause errors
	return false;
}

function printSearch(viewURL){
	var viewWin = window.open(viewURL,'_print','menubar=yes,scrollbars=yes,resizable=1,width=680,height=430');
	if( !viewWin ) { return true; } //popup blockers should not cause errors
	return false;
}

function printMembers(viewURL){
	var viewWin = window.open(viewURL,'_members','menubar=yes,scrollbars=yes,resizable=1,width=680,height=230');
	if( !viewWin ) { return true; } //popup blockers should not cause errors
	return false;
}

function loadImages(language) {
preloadImages(
"assets/images/menu/" + language + "/menu_about_0_on.gif",
"assets/images/menu/" + language + "/menu_about_1_on.gif",
"assets/images/menu/" + language + "/menu_contact_0_on.gif",
"assets/images/menu/" + language + "/menu_contact_1_on.gif",
"assets/images/menu/" + language + "/menu_language_0_on.gif",
"assets/images/menu/" + language + "/menu_language_1_on.gif",
"assets/images/menu/" + language + "/menu_search_0_on.gif",
"assets/images/menu/" + language + "/menu_search_1_on.gif"
);
}

function preloadImages() {
	if (document.images) {
		for (var i = 0; i < preloadImages.arguments.length; i++) {
			(new Image()).src = preloadImages.arguments[i];
		}
	}
}