JS动态添控制表格

vartbNum=2;//记录创建表IDvarimgNum=2;//用来匹配IMG和对应单元格//检测按钮是添加还是删除functionCheckBtn(obj){if(obj.nameProp=="Minus.gif"){obj.src="../../App_Themes/Default/images/Plus.gif";DelGrade(obj);}else//增加新项，图标变删除{obj.src="../../App_Themes/Default/im