var fDesc=new Array(); fDesc[0] = "The standard outfit of this product series has 3 serial communication pots, provided with 3 types of communication interface: RS232/RS485/RS422, which make it convenient to link different devices. Besides, the 3 ports can be enabled for communication at the same time to lower the burden of PLC and improve the system communication performance as a whole."; 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 = ''; } }