check.js

是一个应用型java网站例子

//弹出菜单代码
function MM_preloadimg() { //v3.0
  var d=document;
  if(d.img){
	  if(!d.MM_p) {
	   	d.MM_p=new Array();
		  var i,j=d.MM_p.length,a=MM_preloadimg.arguments;
		  for(i=0; i<a.length; i++)
		  {  if (a[i].indexOf("#")!=0)
		    { 
		    	d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
		    }
		  }
	  }
  }
}
function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
MM_reloadPage(true);

//登录验证开始
function checkCode(n) {
	var code = document.getElementById("code")
	if (n == 0 && code.value == "右侧数字"){code.value="";code.style.cssText = "color:#000000"}
	if (n == 1 && code.value == ""){code.value = "右侧数字";code.style.cssText = "color:#aaaaaa"}
}
function checkUsername(n) {
	var username = document.getElementById("username")
	if (n == 0 && username.value == "用户名"){username.value="";username.style.cssText = "color:#000000"}
	if (n == 1 && username.value == ""){username.value = "用户名";username.style.cssText = "color:#aaaaaa"}
}
function login_onclick() {
	var loginform = document.getElementById("login_club")
	if (loginform.username.value == "" || loginform.username.value == "用户名"){
		alert ("请输入您的用户名!");
		loginform.username.value = "";
		loginform.username.focus();
		return false;
	}
	if (isEnKong(loginform.username.value) == false) {
		alert ("用户名不能是字母、数字、-、_之外的字符！");
		loginform.username.focus();
		return false;
	}
	if (loginform.password.value == "") {
		alert ("请输入您的密码!");
		loginform.password.focus();
		return false;
	}
	if (loginform.code.value == "" || loginform.code.value == "右侧数字") {
		alert ("请输入您的登录验证码，验证码为右侧四位数字!");
		loginform.code.focus();
		return false;
	}    
//add_fptt();
	return true;
}

function windowOpener(loadpos)
{	
  newWindow = window.open(loadpos,'surveywin','toolbar=yes,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=422,height=160');
	newWindow.focus();
}
//登录验证结束

//域名合法性验证
function isEnKong(argValue) 
{
	var flag1=false;
	var compStr="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_-1234567890";
	var length2=argValue.length;
	for (var iIndex=0;iIndex<length2;iIndex++)
	{
		var temp1=compStr.indexOf(argValue.charAt(iIndex));
		if(temp1==-1) 
		{
			flag1=false;
			break;							
		}
		else
		{
			flag1=true;
		}
	}
	return flag1;
}
function IsChDomain(argString)
		{
				var flag=false;
				var compStr="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-1234567890";
				var length1=argString.length;
				for(var chrIndex=0;chrIndex<length1;chrIndex++)
					{
						var temp=argString.charCodeAt(chrIndex)
						if(temp>=10000) 
							flag=true;
						else
						{
							var temp1=compStr.indexOf(argString.charAt(chrIndex));
							if(temp1==-1)
							{
								flag=false;
								break;							
							}
						}
					}
				return flag;
			}
function IsEnDomain(argValue) 
			{
				var flag1=false;
				var compStr="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-1234567890";
				var length2=argValue.length;
				for (var iIndex=0;iIndex<length2;iIndex++)
					{
						var temp1=compStr.indexOf(argValue.charAt(iIndex));
						if(temp1==-1) 
							{
								flag1=false;
								break;							
							}
						else
							{
								flag1=true;
							}
					}
				return flag1;
			}
function isEnDomain0(argValue) 
			{
				var flag1=false;
				var compStr="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
				var length2=argValue.length;
				for (var iIndex=0;iIndex<length2;iIndex++)
					{
						var temp1=compStr.indexOf(argValue.charAt(iIndex));
						if(temp1==-1) 
							{
								flag1=false;
								break;							
							}
						else
							{
								flag1=true;
							}
					}
				return flag1;
}
function isNum(argValue) 
			{
				var flag1=false;
				var compStr="-1234567890";
				var length2=argValue.length;
				for (var iIndex=0;iIndex<length2;iIndex++)
					{
						var temp1=compStr.indexOf(argValue.charAt(iIndex));
						if(temp1==-1) 
							{
								flag1=false;
								break;							
							}
						else
							{
								flag1=true;
							}
					}
				return flag1;
}

function Trim(info)
{
	return info.replace(/(^\s*)|(\s*$)/g, "");
}