function setColor(){
	var tblc1 = '#FFFFE6';
	var tblc2 = '#FFFFFF';
	var tbl = document.getElementById('tbl');
	for (var i=0; i<tbl.rows.length; i++) {
		if (i%2 == 0) {
			tbl.rows[i].style.backgroundColor = tblc1;
		} else {
			tbl.rows[i].style.backgroundColor = tblc2;
		}
	}
	var tbl2 = document.getElementById('tbl2');
	for (var i=0; i<tbl2.rows.length; i++) {
		if (i%2 == 0) {
			tbl2.rows[i].style.backgroundColor = tblc1;
		} else {
			tbl2.rows[i].style.backgroundColor = tblc2;
		}
	}
	var tbl3 = document.getElementById('tbl3');
	for (var i=0; i<tbl3.rows.length; i++) {
		if (i%2 == 0) {
			tbl3.rows[i].style.backgroundColor = tblc1;
		} else {
			tbl3.rows[i].style.backgroundColor = tblc2;
		}
	}
	var tbl4 = document.getElementById('tbl4');
	for (var i=0; i<tbl4.rows.length; i++) {
		if (i%2 == 0) {
			tbl4.rows[i].style.backgroundColor = tblc1;
		} else {
			tbl4.rows[i].style.backgroundColor = tblc2;
		}
	}
}