Here are the instructions from my instructor:

Define a function getSum5(arg_n, arg_opt), that if arg_opt is equal to 1, it calculates the sum of odd numbers from 1 to arg_n: 1+3+5+arg_n; if arg_opt is equal to 2, it calculates the sum of even numbers from 1 to arg_n: 2+4+6+ +arg_n.
Example:
Input: n=6, opt=2
Output: 12

Here is my botched code
Code:
<html>
	<body>
	<script type="text/javascript">
	
	var input1=Number(prompt("Enter an integer:"));
	
	document.write("The total even or odd summation value is: ", getsum5(input1));
	
	function getsum5(x){
				
		var out1 = 0;
		var out2 = 0;
		
		for(count=0; count<=x; count++){
			if(count%2==1){
			
				out1+=count;
				return out1	
				}
			else {			
				out2+=count;
				return out2
				}	
		}
		}		
		
		
		
			
	</script>
	</body>
</html>
Where are my errors? Please help me correct them.