//document.write("<script type=\"text/javascript\" src=\"http://beta.oanet.csie.ntu.edu.tw/functions.js\"></script>");
function makesure() {
   return confirm("確定嗎??");
}

function disable(id) {
   id.disabled=true;
}

function disableForm(theform) {
   for (i = 0; i < document.getElementById(theform).length; i++) {
      var tempobj = document.getElementById(theform).elements[i];
      tempobj.disabled = true;
   }
   return true;
}

function changecss(theClass,element,value) {
   var cssRules;
   if (document.all) {
      cssRules = 'rules';
   } else if (document.getElementById) {
      cssRules = 'cssRules';
   }
   for(var S = 0; S < document.styleSheets.length; S++) {
      for(var R = 0; R < document.styleSheets[S][cssRules].length; R++) {
         if (document.styleSheets[S][cssRules][R].selectorText == theClass) {
	    document.styleSheets[S][cssRules][R].style[element] = value;
	 }
      }
   }	
}