// JavaScript Document

function $() {

    var elements = new Array();

    for (var i = 0; i < arguments.length; i++) {

      var element = arguments[i];

      if (typeof element == 'string') {
        if (document.getElementById) {
          element = document.getElementById(element);
        } else if (document.all) {
          element = document.all[element];
        }
      }

      elements.push(element);

    }

    if (arguments.length == 1 && elements.length > 0) {
      return elements[0];
    } else {
      return elements;
    }
}

function createXMLHttpRequest() {
  try { return new ActiveXObject("Msxml2.XMLHTTP");    } catch(e) {}
  try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {}
  try { return new XMLHttpRequest();                   } catch(e) {}
  alert("XMLHttpRequest not supported");
  return null;
}

function rand()
      {
          var now=new Date();
          var num=now.getTime();  
          return num;
      }
/*範例

function getWeather()
{ 		  
	    var oHttpReq = new createXMLHttpRequest();
  		oHttpReq.onreadystatechange =function()
		{
			if (oHttpReq.readyState != 4)
			 {
				//讀取中處理
			 }
			else
			{  
				if (oHttpReq.status == 200) 
				{ 
					//完成時處理
				}
		 	}	 
		
		}
		//讀取的網頁
		oHttpReq.open("GET", "../func/weather.php?rand="+rand() ,true );  
		oHttpReq.send('');
		
			
}	  

*/