my code just stops

[greenflame]

I have a script and I ran it and it just seems to stop. The reason I
say so is that the script does not get to the second alert. OK here it
is:

function show(input) {
if (input.length == 1) {
for (i=0;i<input[0].length;i++) {
document.write(input[0][i]);
}
document.write("<br>");
} else {
for (i=0;i<input.length;i++) {
for (j=0;j<input[0].length;j++) {
document.write(input[i][j]);
}
document.write("<br>");
}
}
}
function squareroot(input) {
output = copy2darr(input);
alert(output.join("\n"));
top = new Array(output[0].length);
alert(output.join("\n")); // This is the alert it never gets to
for (var i=0;i<output[0].length;i++) {
top[i] = "—";
}
alert(top);
n = output.unshift(top);
alert(output.join("\n"));
for (var i=0;i<output.length;i++) {
if (i == 0) {
n = output[i].unshift("┌");
} else {
n = output[i].unshift("│");
}
}
for (var i=0;i<output.length;i++) {
if (i != output.length-1) {
n = output[i].unshift(" ");
} else {
n = output[i].unshift("\\");
}
}
return output;
}
document.write("long hyphen: —<br>leftmost peice:
┌<br>rightmost peice: ┐<br>taller bar: │<br>square
root symbol: √<br><br>");
arr = [
[" ","5"," "," "," "," "],
["x"," "," ","+"," ","x"]];
show(arr);
show(squareroot(arr));

[Lasse Reichstein Nielsen]

"greenflame" <al*********@yahoo.com> writes:

I have a script and I ran it and it just seems to stop. The reason I
say so is that the script does not get to the second alert. OK here it
is: function squareroot(input) {
output = copy2darr(input);
alert(output.join("\n"));
top = new Array(output[0].length);
Here you are assigning to the global variable "top". It already exists
(window.top) and is a reference to the outermost frame in a set of
frames, or just the page itself if no frames are involved. In, at least,
IE, the global variable "top" is not writable, and you get an error trying.

Generally, you should make all your variables local:
var top = new Array(output[0].length);
i.e., declare the variable with "var <variablename>".
alert(output.join("\n")); // This is the alert it never gets to

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
DHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleDOM.html>
'Faith without judgement merely degrades the spirit divine.'

[greenflame]

ok This seemed to work. Thanks