Simple Web jsp question

[Sl1ver]

say i add a textbox in html and a button, how do i assign functions to it

e.g. how will i write a piece of code that will know when the button has been pressed and will set a label to what was typed in the textbox?

[Dormilich]

standard way:

// say, the textbox has an id of "tb1"
var tb = document.getElementById("tb1");

// type is e.g. "click", "change", …
// your_function is the name of the function to be executed 
//   without brackets or quotation marks
tb.addEventListener(type, your_function, false);

the function your_function can now do anything necessary to set the label (or whatever). you may excessively use this.