function picNav(navArg, picArg, num){
	if(!document.getElementById) return;
	for(i=1; i<6; i++){
		if (!document.getElementById(picArg + 0 + i)) continue;
		if(i == num){
			document.getElementById(navArg + 0 + i).src = "../common/picnav0" + i + "_over.gif";
			document.getElementById(picArg + 0 + i).style.display = "";
		}else{
			document.getElementById(navArg + 0 + i).src = "../common/picnav0" + i + "_out.gif";
			document.getElementById(picArg + 0 + i).style.display = "none";
		}
	}
}