propttle="Elm"
var propnum=2
propnme = new Array(2)
propval = new Array(2)
propunt = new Array(2)
propnme[1]="Density"
propval[1]="550 to 700"
propunt[1]="kgm<sup>-3</sup>"
propnme[2]="Youngs modulus"
propval[2]="9E9 to 10E9"
propunt[2]="Nm<sup>-2</sup>"