how to get sin-1/arc sine in javascript

[c.pfaffenbichler]

This time I ask doubly humbled because not only am I weak in JavaScript but Ive come to realize that Ive gotten pretty bad at mathematics  
On my calculator the key »sin-1« (sinus to the power of negative one) gets me the angle in degrees if I enter the value I get by dividing the opposite side by the hypothenuse (of a right triangle naturally), but I cant figure out how to achieve that in JavaScript.
The calculator-key signifies the arc sine, which the function Math.asin() should also provide but I dont seem to get meaningful results, instead the result looks like what on my calculator is called the hyperbolic sine.
Could someone please help me out here Script- and/or math-wise?

[try67]

Math.asin(x) will solve your problem.

For more info about JS's Math Object, look here:
http://w3schools.com/jsref/jsref_obj_math.asp

[c.pfaffenbichler]

Thanks for the reply, but that doesnt help me.
I need the angle (for example for 0.235 I would like the reply of 13.6) and
Math.asin(0.235);
gets me the result »0.23721856«.
Do I make some mistake or do I have to process that result further? If so, how?
Like I said, my math-skills have seriously deteriorated, but its just a keystroke on the calculator

Edit: Could the calculator-people use the term arc sine based on another definition?

[try67]

The result is in radians. 0.2372 radians is 13.6 degrees.
To convert from radians to degrees you need to multiply by 180/π (which is about 57.2958).

[Michael_L_Hale]

var x = 0.235
Math.asin( x )*(180/Math.PI)

[c.pfaffenbichler]

Thanks!
Youve helped me a lot!

Have a great weekend
Pfaffenbichler