function newin (url,w,h) 
{ 
window.open(url,"","toolbar=no,width="+w+",height="+h+",directories=no,status=no,scrollbars=yes,resizable=no,menubar=no") 
} 
function winopen(url,width,height)
		
			{
			var left = (screen.width/2) - width/2;
			var top = (screen.height/2) - height/2;
			var styleStr = 'toolbar=no,location=no,directories=auto,status=no,menubar=no,scrollbars=yes resizable=no,z-lock=no,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
			window.open(url,"", styleStr);
}
			
function ss_chkuser(formname){
	var obj=document.getElementById("user");
	switch( obj.value.length){
		case 6:		
			document.getElementById(formname).action="../LoginCheck.asp?Cmd=login";
			document.getElementById(formname).submit();
			break;
		default:
		    if (obj.value.length<6){
		     	document.getElementById(formname).action="";	
			}else{
 				document.getElementById(formname).action="../LoginCheck.asp?Cmd=login";
				document.getElementById(formname).submit();
				break;
			}
	}
}
//是否为正确的会员帐号
function IsUID(id) 
{ 
	if(isNaN(id))
		return false;
	else if(id > 99999999 || id <10000000)
		return false;
	else if(id.length != 8)
		return false;
	else
		return true;
}

//是否为正确的IP地址
function IsIP(ip) 
{ 
	var patrn = /^([01]?\d?\d|2[0-4]\d|25[0-5])\.([01]?\d?\d|2[0-4]\d|25[0-5])\.([01]?\d?\d|2[0-4]\d|25[0-5])\.([01]?\d?\d|2[0-4]\d|25[0-5])$/;
	if (!patrn.test(ip))
		return false;
	else
		return true;
}

//是否为正确的Email地址
function IsMail(mail)
{ 
	var patrn = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
	if (!patrn.test(mail))
		return false;
	else
		return true;
}

//是否为正确的URL
function IsURL(url) 
{ 
	var patrn = /^http:\/\/([\w-]+\.)+[\w-]+(\/[\w-.\/?%&=]*)?$/;
	if (!patrn.test(url))
		return false;
	else
		return true;
}

//是否含有汉字
function IsChinese(str) 
{ 
	var patrn = /[\u4e00-\u9fa5]/;
	if (!patrn.test(str))
		return false;
	else
		return true;
}

//去左空格
function ltrim(s){
	return s.replace( /^\s*/, "");
}

//去右空格; 
function rtrim(s){
	return s.replace( /\s*$/, "");
}

//去两端空格; 
function trim(s){
	return s.replace( /\s*$/, "").replace( /^\s*/, "");
}