function signprotect(){
var count = 0;
if(1 == TANGER_OCX_OBJ.DocType) //1为word，6为wps
{
var shapes = TANGER_OCX_OBJ.ActiveDocument.shapes;
for(i = 1;i<=shapes.Count;i++)
{
if (12 == shapes(i).Type) //如果是控件,判断控件类型
{
shapes(i).OLEFormat.object.LockDoc(true);//设置是否保护文档，true为保护，false为解保护
}
}
}
}