function colorTable(the_id){
	the_table = document.getElementById(the_id);
	the_tr_list = the_table.getElementsByTagName('tr');
	tr_bg_color = "#eeeeee";
	color_toggle = false;
	for( i=0; i < the_tr_list.length; i++ ) {
		the_td_list = the_tr_list[i].getElementsByTagName('td');
		if (color_toggle) {
			the_tr_list[i].style.backgroundColor = tr_bg_color;
			color_toggle = false;
		}
		else {
			the_tr_list[i].style.backgroundColor = 'white';
			color_toggle = true;
		}
		
		for( j=5; j < the_td_list.length; j++ ) {
			td = the_td_list[j];
			if (!isNaN(td.gp)) {
				if (td.gp <= 1000 && td.gp >= 900) {
					td.style.color = 'red';
					td.style.fontWeight = 'bold';
				}
				if (td.gp < 900 && td.gp >= 800) {
					td.style.color = 'blue';
					td.style.fontWeight = 'bold';
				}
				if (td.gp < 800 && td.gp >= 700) {
					td.style.color = 'green';
					td.style.fontWeight = 'bold';
				}
			}
		}
	}				
}