function chgSkillTree( job, skill ) {
	if( job == -1 ) {
		skillTreeImage.src = "p/st_ht.jpg";
		return false;
	}
	skillTreeImage.src = "p/st_" + job + "_" + skill + ".gif";
	return true;
}

function preload( job, name ) {
	img = new Image();
	img.src = "p/st_" + job + "_" + name + ".gif";
}

function preloadOfHunter() {
	preload( "ht", "snklesnare" );
	preload( "ht", "beastbane" );
	preload( "ht", "blastmine" );
	preload( "ht", "blitzbeat" );
	preload( "ht", "craymore" );
	preload( "ht", "detecting" );
	preload( "ht", "falcon" );
	preload( "ht", "flasher" );
	preload( "ht", "freezingtrap" );
	preload( "ht", "landmine" );
	preload( "ht", "removetrap" );
	preload( "ht", "sandman" );
	preload( "ht", "shockwave" );
	preload( "ht", "skidtrap" );
	preload( "ht", "springtrap" );
	preload( "ht", "steelcrow" );
	preload( "ht", "talkiebox" );
}