源码学习:一个简单的日历控件(4)

   trRow = tbBoard.insertRow(2);
   var cnDateName = new Array("周日","周一","周二","周三","周四","周五","周六");
   for (var i = 0; i < 7; i++) {
    tbCell=trRow.insertCell(i)
    tbCell.innerText=cnDateName[i];
    tbCell.align="center";
    tbCell.width=35;
    tbCell.style.cssText="cursor:default;border:1 solid #99CCCC;background-color:#99CCCC;";
   }

   /*********** Calendar Body ***************/
   trRow = tbBoard.insertRow(3);
   tbCell=trRow.insertCell(0);
   tbCell.colSpan=7;
   tbCell.height=97;
   tbCell.vAlign="top";
   tbCell.bgColor="#F0F0F0";
   var tbBody=document.createElement("table");
   tbCell.insertAdjacentElement("beforeEnd",tbBody);
   tbBody.style.cssText="position:relative;top:0;left:0;width:245;height:103;font-size:9pt;"
   tbBody.cellPadding=0;
   tbBody.cellSpacing=1;
   calendar.body=tbBody;
  }
  /************** 加入功能按钮公共样式 *********************/
  this.insertTbCell=function(trRow,cellIndex,TXT,trAlign,tbColSpan){
   var tbCell=trRow.insertCell(cellIndex);
   if(tbColSpan!=undefined) tbCell.colSpan=tbColSpan;

   var btnCell=document.createElement("button");
   tbCell.insertAdjacentElement("beforeEnd",btnCell);
   btnCell.value=TXT;
   btnCell.style.cssText="width:100%;border:1 outset;background-color:buttonface;";
   btnCell.onmouseover=function(){
    btnCell.style.cssText="width:100%;border:1 outset;background-color:#F0F0F0;";