javascriptユーティリティの使用の詳細を解析します.

 
  
function addBookMark(url, title){ 
  
//        addBookMark(window.location,document.title) 
  
    if(document.all){ 
  
      window.external.addFavorite(url,title); 
  
    }else if (window.sidebar){ 
  
      window.sidebar.addPanel(title,url,''); 
  
    }else{ 
  
      alert('    '); 
  
    } 
  
}   
   
  

function setHomepage(obj,url) {
// setHome(this, window.location) 
    try {   
        obj.style.behavior = 'url(#default#homepage)';   
        obj.setHomePage(url);   
    } catch (e) {   
        if (window.netscape) {   
            try {   
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");   
            } catch (e) {   
                alert('         ！
          "about:config"   
    [signed.applets.codebase_principal_support]     "true",    。');   
            }   
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);   
            prefs.setCharPref('browser.startup.homepage', vrl);   
        }   
    }   
}   
 
  
function boxMove(box){
//     
    var w = box.scrollWidth,h = box.scrollHeight;
    var iWidth = document.documentElement.clientWidth; 
    var iHeight = document.documentElement.clientHeight;     
    var moveX = 0,moveY = 0,moveTop = 0,moveLeft = 0,moveable = false;
    box.onmousedown = function(e){    
    moveable = true;     
    e = window.event?window.event:e;
    moveX = e.clientX-box.offsetLeft;        
    moveY = e.clientY-box.offsetTop;
    box.style.zIndex++;
    }
    document.onmousemove = function(e){
        if(moveable){
            e = window.event?window.event:e;        
            var x = e.clientX - moveX;
            var y = e.clientY - moveY;
            if ( x > 0 &&( x + w < iWidth) && y > 0 && (y + h < iHeight)){
                box.style.left = x + "px";
                box.style.top = y + "px";
                box.style.margin = "auto";
            }
        }
    }
    document.onmouseup = function (){moveable = false;};
}
 
  
function getHtmlRoot(){
/*  html      */
    if(document.compatMode.toLowerCase()=="css1compat"){
        htmlRoot = document.documentElement;
    }else{
        htmlRoot = document.body;
    }
    return htmlRoot;
}
 
  

function showWindow(boxId, closeId, showBg){//  
    htmlRoot = getHtmlRoot();
    box = document.getElementById(boxId);
    boxId = '#' + boxId;
    closeId = '#' + closeId;
    showBox = $(boxId);
    showBox.show();
    z_index = 20;
    moveLeft =  (htmlRoot.clientWidth- box.clientWidth)/2 + htmlRoot.scrollLeft +'px';
    moveTop = (htmlRoot.clientHeight - box.clientHeight)/2 + htmlRoot.scrollTop;+'px';
    showBox.css({position:'absolute', left:moveLeft,zIndex:z_index, top:moveTop});
 
  
    boxMove(box);

    if(showBg){
        objMask = document.createElement("div");
        objMask.className = "BoxMask";
        htmlRoot.appendChild(objMask);
        objMask.style.cssText += 'position:absolute;top:0; left:0;filter:Alpha(Opacity=50);opacity:0.5;background:#AAA;';

        objMask.style.zIndex = z_index -1;
        objMask.style.width =  htmlRoot.clientWidth + 'px';
        objMask.style.height = htmlRoot.scrollHeight + htmlRoot.scrollTop + 'px';
    }

    $(closeId).click(function(){
        showBox.hide();
        mybg.style.display = "none";
    });
    $('.closeBtn').click = function(){
        showBox.hide();
        mybg.style.display = "none";    
    };
 
  
}
 
  
function getFormQuery(formId){
/*      */
    formObj = document.getElementById(formId);
       var i, queryString = "", and = "", itemValue;
       for(i = 0; i             var item = formObj[i];
              if ( item.name!='' ){
                     if(item.type == 'select-one'){
                         itemValue = item.options[item.selectedIndex].value;
                     }else if ( item.type=='checkbox' || item.type=='radio'){
                         if ( item.checked == false ){ continue; }
                         itemValue = item.value;
                     }else if ( item.type == 'button' || item.type == 'submit' || item.type == 'reset' || item.type == 'image'){
                         continue;
                     }else{
                          itemValue = item.value;
                     }
                   //  itemValue = escape(itemValue);
                     queryString += and + item.name + '=' + itemValue;
                     and="&";
                   //queryString += and + encodeURIComponent(item.name) + '=' +encodeURIComponent( itemValue); 
              }
       }
       return queryString;
}
 
  
//  js      
onerror = errHandle;
function errHandle(msg,url,line){
    var txt=""
    txt = "      ！

"
    txt += "  : "+ msg +"
"
    txt += "  : " + url + "
"
    txt += "  : " + line + "

"
    alert(txt);
    return false;
}
 
  

function setAutoWidth(id,width,size){
//       
    var obj = document.getElementById(id);
    if(size=='max'){
        obj.style.width = (obj.clientWidth > width) ? width + "px" : "auto";
    }else{
        obj.style.width = (obj.clientWidth < width) ? width + "px" : "auto";
    }
}
 
  
function fontScroll(id){
/*        */
    var obj = document.getElementById(id);
    var text = obj.innerHTML;
    var first = text.charAt(0);
    var left = text.substring(1, text.length);
    obj.inerHTML = left + first;
    //        setInterval('fontScroll(id)', 500);
}
 
  
function bubbleSort(arr){
/*     */
var sign = false //          
for(var i=0; i < arr.length-1; i++){
    for(varj=0; j < arr.length-1-i; j++){
        if(arr[j]> arr[j+1]){
            vartemp = arr[j]
            arr[j]= arr[j+1]
            arr[j+1]= temp
            sign= true //          ，    ，        
        }
    }
    if(sign)//             …
       sign= false //     ，         
    else
       break//   ，   
    }
return arr;
}
 
  
function getCoordinate(evt){
/*       */
    var x = evt.clientX;
    var y = evt.clientY;
    document.getElementById('show').innerHTML = x +' &' + y;
}
 
  
 
 
  
function checkEmail(email){
/*       (;)   Email  */
if(email != null){
    if(email.indexOf(";",0) == -1){ //indexOf(   ，   )                   ，    -1
        if(!isEmail(email)){
            alert("        ，   ！");
            document.getElementById("email").focus();
            return false;
        }
    }else{
        var emailArr = email.split(";");//split(   ,     )           
        var i, iMax = emailArr.length;
        for(i = 0; i < iMax; i++){
            if(emailArr[i] != null || emailArr != ""){
                if(!isEmail(emailArr[i])){
                    alert("               ，         !");    
                    document.getElementById("email").focus();
                    return false;
                }
            }
        }
    }    
}
function isEmail(str){
   var reg = /^(\w)+(\.\w+)*@(\w)+((\.\w+)+)$/;
   return reg.test(str);//test(    )               .
}
}