function setTable(selOBJ) { 
	for (i=1; i<=10; i++) { 
		if (document.getElementById(["tbl"+i])) {
		document.getElementById(["tbl"+i]).style.display = "none";
		} 
		if (document.layers) {
		document.layers["tbl"+i].display = "none"; 
		}
	} 
	n = selOBJ.selectedIndex + 1; 
		if (document.getElementById(["tbl"+n])) {
		document.getElementById(["tbl"+n]).style.display = "block";
		} 
		if (document.layers) {
		document.layers["tbl"+n].display = "block";
		}
}