var string1 = "Test"
var string2
var string3
var string4
var string5
var string6
var string7
var endString ="\\end{array}$"
var string0 = string1+endString

function writeEqn(){
     string1 = "$\\begin{array}{rcl}\\frac{d}{dx}\\sin(x)&=&\\altLink{\\lim_{h\\rightarrow 0}\\frac{\\sin(x+h)-\\sin(x)}{h}}{Step 1.}\\\\"
     string2 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{\\sin(x)\\cos(h)+\\cos(x)\\sin(h)-\\sin(x)}{h}}{Step 2.}\\\\"
     string3 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{\\sin(x)\\cos(h)-\\sin(x)}{h}+\\frac{\\cos(x)\\sin(h)}{h}}{Step 3.}\\\\"
     string4 = "&=&\\altLink{\\lim_{h\\rightarrow 0}\\,\\frac{\\sin(x)\\cos(h)-\\sin(x)}{h}+\\lim_{h\\rightarrow 0}\\,\\frac{\\cos(x)\\sin(h)}{h}}{Step 4.}\\\\"
     string5 = "&=&\\altLink{-\\sin(x)\\cdot\\lim_{h\\rightarrow 0}\\,\\frac{1-\\cos(h)}{h}+\\cos(x)\\cdot\\lim_{h\\rightarrow 0}\\,\\frac{\\sin(h)}{h}}{Step 5.}\\\\"
     string6 = "&=&\\altLink{-\\sin(x)\\cdot 0+\\cos(x) \\cdot 1}{Step 6.}\\\\"
     string7 = "&=&\\altLink{\\cos(x)}{Step 7.}"
     string0 = string1+string2+string3+string4+string5+string6+string7+endString
}