data types in javascript (resolved)

[tr0n]

i've got a couple of questions regarding data types in javascript:

1. i have a variable that i've declared as "var iOrders;", that's meant to hold an integer. i'm trying to increment this everytime a function is called, using "iOrders += 1;", and then in another function i want a loop that loops through the amount held in iOrders, using this:

for (i = iOrders; i > 0; i--) {
    //do stuff
}

but it's saying that the value of iOrders is NaN. is there something i'm meant to do to define iOrders as an integer?

2. i have a multidimensional array which holds some product information, one of the columns being a number (although it's in a string (ie. arrProducts[1][3] = "1234"; ), because some other columns are strings. i need to compare the value of that to a number entered in a textbox, so how can i convert them both to integers? at the moment i'm using this:

if (document.form1.text1.value > arrProducts[i][3]) {
    //do stuff
}

thanks for any help