var aVar = 1
var bVar = 1
var cVar = 1
var poly
var string1 = "Test"
var string2
var string3
var string4
var string5
var string6
var endString ="\\end{array}$"
var string0

function writeNewEqn(){
   with(Math){
     bVar = round(10*random()+1)
     cVar = round(10*random()+1)
   }
   poly="f(x)\\,=\\,\\frac{1}{"+bVar+"+"+cVar+"\\cdot x}"
}
function writeEqn(){
     string1 = "$\\begin{array}{rcl}\\lim_{h\\rightarrow 0}\\,\\frac{f(x+h)\\;-\\;f(x)}{h}\\,&=&"
     string2 = "\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{\\frac{1}{"+bVar+"+"+cVar+"(x+h)}-\\frac{1}{"+bVar+"+"+cVar+"x}}{h}}{Step 1.}\\\\" 
     string3 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{\\frac{1}{"+bVar+"+"+cVar+"x+"+cVar+"h}-\\frac{1}{"+bVar+"+"+cVar+"x}}{h}}{Step 2.}\\\\"
     string4 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{\\frac{["+bVar+"+"+cVar+"x]-["+bVar+"+"+cVar+"x+"+cVar+"h]}{["+bVar+"+"+cVar+"x+"+cVar+"h]["+bVar+"+"+cVar+"x]}}{h}}{Step 3.}\\\\" 
     string5 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{1}{h}\\cdot\\frac{-\\;"+cVar+"h}{["+bVar+"+"+cVar+"x+"+cVar+"h]["+bVar+"+"+cVar+"x]}}{Step 4.}\\\\"
     string6 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{-\\;"+cVar+"}{["+bVar+"+"+cVar+"x+"+cVar+"h]["+bVar+"+"+cVar+"x]}}{Step 5.}\\\\"
     string7 = "&=&\\altLink{\\frac{-\\;"+cVar+"}{["+bVar+"+"+cVar+"x]^2}}{Step 6.}\\\\"
     string0 = string1+string2+string3+string4+string5+string6+string7+endString     
}