/*Last DO 2008.11.26*/
/*获取对象的引用*/
function $(id){ return document.getElementById(id);}
/*获取对象的样式集*/
function $S(id){ return document.getElementById(id).style;}
/*获取对象赋值*/
function $V(id){ return document.getElementById(id).value;}
/*切换显示对象*/
function switchDispObj(id){if($S(id).display=="")$S(id).display="none"; else $S(id).display="";}
/*隐藏显示*/
function hideObj(id){$S(id).display="none";}
/*显示图层*/
function dispObj(id){$S(id).display="";}
/*返回DIV或Span等的innerHTML属性*/
function $IH(id){	return $(id).innerHTML;	}
/*验证是否ＤＯＵＢＬＥ型*/
function valDb(sDouble)
{
  var re = /^\d+(?=\.{0,1}\d+$|$)/;
  return re.test(sDouble);
}
/*验证是否整型*/
function valInt(v)
{
	var re = /^\d+/;
	return re.test(v);
}
/*AJAX异步请求*/
function wReq(u,s,change) {var r=[function(){ return new XMLHttpRequest(); },function(){ return new ActiveXObject("Msxml2.XMLHTTP"); },   function(){ return new ActiveXObject("Microsoft.XMLHTTP"); }];
for(var i in r) { try { var v=r[i],q=v(); }catch(e) { continue; } }
if(change) q.onreadystatechange=function(){ if(q.readyState==4 && q.status==200)change(q.responseText); };q.open('GET',u,s?1:0);q.send(null);}