Nisage

I'm having a minor problem with a calculator script. There's 2 text boxes where you input your 2 numbers, and a drop-box that has either +, -, *, or /.
I can't seem to figure out how to set it up, so I tried this method "what would I do in VB.NET?", "Use the IF..ELSE statement". One problem solved, new problem, no idea how to set up the IF..ELSE statement in java script.

Here's what it looks like for the math part....

		<script language="javascript" type="text/javascript">  
			function multiply()
			{  
			a=Number(document.frmSimpleCalculator.txtValue1.value);  
			b=Number(document.frmSimpleCalculator.txtValue2.value);  
			c=a*b;  
			document.frmSimpleCalculator.txtTotal.value = c; 	
			}  
		</script>
		
		<script language="javascript" type="text/javascript">  
			function btnCalculateTotal_Click()
			{   
			if (document.frmSimpleCalculator.ddlOperator.value == 1)
				{
					a = Number(input.txtValue1);  
					b = Number(input.txtValue2);
					c = a + b;
					document.frmSimpleCalculator.txtTotal.value = c; 	
				}	
			else if (document.frmSimpleCalculator.ddlOperator.value == 2)
				{
					a=Number(document.frmSimpleCalculator.txtValue1.value);  
					b=Number(document.frmSimpleCalculator.txtValue2.value);
					c=a-b;
					document.frmSimpleCalculator.txtTotal.value = c; 	
				}
			else
				{
				alert ("<b>Error</b>");
				}
		</script>
		
		<script type="text/javascript" language="javascript">  
			function btnClear_Click( )
			{ 
				document.frmSimpleCalculator.txtValue1.value = "0";
				document.frmSimpleCalculator.ddlOperator.value = "1";  
				document.frmSimpleCalculator.txtValue2.value = "0";  
				document.frmSimpleCalculator.txtTotal.value = "0";  
			}  
		</script> 
		

If I have to post the whole script, I will. I should mention that this is related to homework, so please don't give me the answer right off the bat, hints are nice though. I already tried googling this problem for 5 hours and found no answer, so..... yeah. The thing related to homework is the math set-up (input a + input b = answer c) the IF..ELSE is my way of trying to set-up the drop-box list for the operations.

Oh right, I'm using Notepad++ to type this out, if that helps out in anyway.











Edit: Oh yeah, forgot I asked for help on the Flash button....... Oops..... ^^' The button went well, sadly, had to change it around a bit. Sorry for not replying to it, hated that term.