function showModWindow (oParams) {
	if ( !oParams ) oParams = new Object();
	if ( oParams.visible == undefined ) oParams.visible = true;
	
	var wMod;
	if ( wMod = document.getElementById("w-mod") ) {
		if ( !wMod.initialized ) {
			wMod.initialized = true;
			wMod.visible = false;
			
		}
		
		wMod.visible = oParams.visible;
		wMod.style.display = oParams.visible ? "block" : "none";
			

	}
}