util.js

来自「ajax+md5实现网站登陆注册模块源代码」· JavaScript 代码 · 共 58 行

//让一个按键失灵,调用keypress事件
 

  //异或加密 srtV是要加密的字段，strPass是密钥
function XOR(strV,strPass){
    var intPassLength=strPass.length;
    var re="";
    for(var i=0;i<strV.length;i++)
    {
    re+=String.fromCharCode(strV.charCodeAt(i)^strPass.charCodeAt(i%intPassLength));
    }

    return(re);
};

//function GetArgsFromHref(sHref, sArgName)   //获取url参数值，sHref是url,sArgName是url中要请求的参数名
//{ 
//var args = sHref.split("?"); 
//var retval = ""; 

//if(args[0] == sHref) 
//{ 
//return retval; 
//} 
//var str = args[1]; 
//args = str.split("&"); 
//for(var i = 0; i < args.length; i ++) 
//{ 
//str = args[i]; 
//var arg = str.split("="); 
//if(arg.length <= 1) continue; 
//if(arg[0] == sArgName) 
//retval = arg[1]; 
//} 
//return retval; 
//} 


//为String对象原型添加trim方法，去掉字符串前后的空格
String.prototype.trim = function()
{
    // 用正则表达式将前后空格，用空字符串替代。
    return this.replace(/(^\s*)|(\s*$)/g, "");
};


//iframe自适应大小,在iframe的onload方法中载入
function init() {
            document.all('right').height=right.document.body.scrollHeight + 20;
            lastHeight= right.document.body.scrollHeight;
            setInterval(function(){
                if(right.document.body.scrollHeight!=lastHeight) {
                    document.all('right').height=right.document.body.scrollHeight + 20;
                    lastHeight= right.document.body.scrollHeight;
                    }
                },1);
        };