Tinyized version of a scholarship calculator

calc

<div id="schol_result">Please fill in your information and click CALCULATE</div>
<input type="text" id="act" />
<input type="text" id="gpa" />
<input type="submit" id="calculate-button" value="CALCULATE" />

<script type="text/javascript">
	$(document).ready(function(){
		$('#calculate-button').click(function() {
			if (notEmpty($('#act')) && notEmpty($('#gpa'))) {
				calc();
			}
		});
	});
 
	function calc() {
		var desc  = "";
		var act   = $('#act').val();
		var nact  = 0;
		var ngpa  = 0;
		var gpa   = $('#gpa').val();
		var schol = new Array();
		var amt   = new Array(0,700,800,1000,1100,1200,1400,1600,1800,2000);
		schol[4]  = new Array(0, 1, 1, 3, 5, 6, 7, 8, 9);
		schol[3]  = new Array(0, 1, 1, 2, 5, 5, 7, 7, 8);
		schol[2]  = new Array(0, 1, 1, 2, 3, 3, 3, 6, 7);
		schol[1]  = new Array(0, 1, 1, 2, 2, 3, 3, 4, 5);
		schol[0]  = new Array(0, 0, 0, 0, 0, 0, 0, 0, 0);
		
		switch(true) {
			case(gpa < 3): ngpa=0;break;
		  case(gpa < 3.25): ngpa=1;break;
		  case(gpa < 3.5): ngpa=2;break;
		  case(gpa < 3.75): ngpa=3;break;
		  case(gpa >=3.75): ngpa=4;break;
			default: ngpa=0;
		}
		switch(true) {
			case(act < 22): nact=0;break;
			case(act < 23): nact=1;break;
			case(act < 24): nact=2;break;
			case(act < 25): nact=3;break;
			case(act < 26): nact=4;break;
			case(act < 27): nact=5;break;
			case(act < 28): nact=6;break;
			case(act < 29): nact=7;break;
			case(act >=29): nact=8;break;
			default: nact=0;
		}
		//alert(schol[ngpa][nact]);
		if (schol[ngpa][nact] == 0) {
			$("#schol_result").html('<div style="font-size:10px;line-height:11px;">We offer general scholarships, talent awards in art, music, theatre, debate, athletics, and departmental scholarships. Call (877) 468-6378, <a href="mailto:go2esu@emporia.edu" target="_blank">email us</a> or <a href="http://www.emporia.edu/admiss" target="_blank">click here</a>.</div>');
		} else {
			var amount = amt[schol[ngpa][nact]];
			$("#schol_result").html('Congratulations. Your test scores may qualify you for an ESU Hornet scholarship, worth $'+amount);
		}
	}
	 
	function notEmpty(object){
		return (object.length > 0 ? true : false);
	}
</script>