var step=0
var step2=0
var string1
var string2
var string3
var string4
var string5
var string6
var string7
var string8
var endString ="\\end{array}"
var string0 = string1+endString
var string00 = string1+endString
function writeEqn1(){
   if (step == 0){
     string1 = "\\begin{array}{rcl}\\lim_{x\\rightarrow 2+}\\,\\frac{f(x)-f(2)}{x-2}\\,&=&\\lim_{x\\rightarrow 2+}\\,\\frac{|x^2-4|-|4-4|}{x-2}\\\\"
     string0 = string1+endString
     step = 1
   }
   else { if (step == 1){
     string2 = "&=&\\lim_{x\\rightarrow 2+}\\,\\frac{x^2-4}{x-2}\\; \\mbox{ since } x>2\\\\"
     string0 = string1+string2+endString
     step=2
   }
   else { if (step == 2) {
     string3 = "&=&\\lim_{x\\rightarrow 2+}\\,\\frac{(x-2)(x+2)}{x-2}\\\\"
     string0 = string1+string2+string3+endString
     step=3
   }
   else { if (step == 3) {
     string4 = "&=&\\lim_{x\\rightarrow 2+}\\,x+2\\,=\\,4\\\\"
     string0 = string1+string2+string3+string4+endString
     step=3
     document.derivative1.Continue.value="Done!"
   }}}}
}
function writeEqn2(){
   if (step2 == 0){
     string5 = "\\begin{array}{rcl}\\lim_{x\\rightarrow 2-}\\,\\frac{f(x)-f(2)}{x-2}\\,&=&\\lim_{x\\rightarrow 2-}\\,\\frac{|x^2-4|-|4-4|}{x-2}\\\\"
     string00 = string5+endString
     step2 = 1
   }
   else { if (step2 == 1){
     string6 = "&=&\\lim_{x\\rightarrow 2-}\\,\\frac{-(x^2-4)}{x-2}\\; \\mbox{ since } x<2\\\\"
     string00 = string5+string6+endString
     step2=2
   }
   else { if (step2 == 2) {
     string7 = "&=&\\lim_{x\\rightarrow 2-}\\,\\frac{-(x-2)(x+2)}{x-2}\\\\"
     string00 = string5+string6+string7+endString
     step2=3
   }
   else { if (step2 == 3) {
     string8 = "&=&\\lim_{x\\rightarrow 2-}\\,-(x+2)\\,=\\,-4\\\\"
     string00 = string5+string6+string7+string8+endString
     step2=4
     document.derivative2.Continue.value="Done!"
   }}}}
}