javascript ie error

[seventheyejosh]

Hello all, i'm relatively new to javascript and i keep getting this error.

 

Error: Object doesnt support this property or method.

 

When i debug it says that this line is the bad one:

 

function change_cal_value(){

 

  exercise=encodeURI(document.getElementById('exercise').value);

  qty=document.getElementById('qty').value;

 

  url='<URL>='+exercise+'&qty='+qty+'&act=no&1=1';

  sndReqListb(url);

 

  }

 

i cant seem to figure out this, any help would be much appreciated.

[Maq]

Have you instantiated the variables?

 

Should be something like:

 

var exercise=encodeURI(document.getElementById('exercise').value); 

 

same with:

 

var qty=document.getElementById('qty').value;