function htab(m,n,s) {          
	s = s + 1;          
	for(var i=1;i<s;i++) {          
		document.getElementById("nav_"+m+"_"+i).className="off";          
		document.getElementById("content_"+m+"_"+i).style.display="none";          
	}          
	document.getElementById("nav_"+m+"_"+n).className="on";          
	document.getElementById("content_"+m+"_"+n).style.display="block";          
} 
function setHome(sites){
	if ( document.all ){
		window.external.AddFavorite(this.location.href ,sites);
	}
}
function showCheckCode(){
	var codepath=document.getElementById('checkcode_img').src;
	if(codepath.indexOf('blank.gif')!=-1){
      document.getElementById('checkcode_img').src='/image.asp';
    } 	
}
function showLoginCheckCode(){
	var codepath=document.getElementById('logincheckcode_img').src;
	if(codepath.indexOf('blank.gif')!=-1){
      document.getElementById('logincheckcode_img').src='/image.asp';
    } 	
}
function checkCommen(obj){
	if(obj.content.value==""){
			alert("内容不能为空!");
			obj.content.focus();
			return false;
	}
	if(obj.vertcode.value==""){
			alert("验证码不能为空!");
			obj.vertcode.focus();
			return false;
	}
	return true;
}
function checkprice(){
	if (event.keyCode < 48 || event.keyCode > 57)
		event.returnValue = false;
	if(event.keyCode==46)
		event.returnValue = true;
}
function checkint(elem)
{
  var checkOK = ".0123456789";
  var checkStr = elem.value;
  var allValid = true;
  var decPoints = 0;
  var allNum = "";
  for (i = 0;  i < checkStr.length;  i++)
  {
		ch = checkStr.charAt(i);
    	for (j = 0;  j < checkOK.length;  j++)
      	if (ch == checkOK.charAt(j))
        break;
    	if (j == checkOK.length)
    	{
      		allValid = false;
      		break;
    	}
  }
  if (!allValid)
  {
    	alert("只能输入数字。");
    	elem.focus();
    	return (false);
  }
  return (true);
}
function openWindow(strURL,winName) { 
	window.open(strURL,"_blank", "");
}