Most values that are assigned in JavaScript are floating point values by default, even if you think you have assigned an integer value. If you are having trouble using == or switch/case on values that you know are integers, use the following constructs:
parseInt(num)==parseInt(num2)
or
switch(parseInt(valuename))
{
case 1:
case 2:
case 3:
strvalueswitch = "one, two, three";
break;
case 4:
strvalueswitch = "four";
break;
default:
strvalueswitch = "five";
}