if (taskBoxPos == 0) { //แสดงผลแบ่งครึ่ง
if (contentPanelHeight != 0) {
document.getElementById("pdfWrapper").style.height = ((contentPanelHeight / 2) + 10) + "px";
if (document.getElementById("pdfContainer") != null)
document.getElementById("pdfContainer").style.height = (contentPanelHeight / 2) + "px";
document.getElementById("taskWrapper").style.height = ((contentPanelHeight / 2) - 15) + "px";
document.getElementById("leftTask").style.height = ((contentPanelHeight / 2) - 15) + "px";
document.getElementById("rightTask").style.height = ((contentPanelHeight / 2) - 15) + "px";
document.getElementById("taskWrapper").style.display = "block";
}