var fDesc=new Array(); fDesc[0] = "This RPN calculator offers over 250 solutions with 6 unique keypads and 14 discrete calculators for the more complex functions. It has a complete help system with individual tips for all but the most ordinary functions and a Tip of the Day feature for new users. Select fixed, scientific or engineering notation and degrees, radians, or grads. Save and print the contents of the running tape display. Functions available from any keypad: STO, save up to 4 numbers into memory, 2 of these storage registers are used for register arithmetic; Lastx, recalls the last number used; Drop, deletes the number in x-reg and Drops the number in y-reg into x-reg; exchange the values in the x-reg and y-reg; x"; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }