common.js

/******************************************************************************
  Crossday Discuz! Board - Common Modules for Discuz!
  Copyright 2001-2006 Comsenz Inc. (http://www.comsenz.com)
*******************************************************************************/

var sPop = null;
var postSubmited = false;

document.write("<style type='text/css'id='defaultPopStyle'>");
document.write(".cPopText { font-family: Tahoma, Verdana; background-color: #FFFFCC; border: 1px #000000 solid; font-size: 12px; padding-right: 4px; padding-left: 4px; line-height: 18px; padding-top: 2px; padding-bottom: 2px; visibility: hidden; filter: Alpha(Opacity=80)}");

document.write("</style>");
document.write("<div id='popLayer' style='position:absolute;z-index:1000' class='cPopText'></div>");

function showPopupText(event) {
 if(event.srcElement) o = event.srcElement; else o = event.target;
 MouseX=event.clientX;
 MouseY=event.clientY;
 if(o.alt!=null && o.alt!="") { o.pop=o.alt;o.alt="" }
 if(o.title!=null && o.title!=""){ o.pop=o.title;o.title="" }
 if(o.pop!=sPop) {
  sPop=o.pop;
  if(sPop==null || sPop=="") {
   document.getElementById("popLayer").style.visibility="hidden";       
  } else {
   if(o.dyclass!=null) popStyle=o.dyclass; else popStyle="cPopText";
   document.getElementById("popLayer").style.visibility="visible";
   showIt();
  }
 }
}
//提示,好东西
function showIt() {
 document.getElementById("popLayer").className=popStyle;
 document.getElementById("popLayer").innerHTML=sPop.replace(/<(.*)>/g,"&lt;$1&gt;").replace(//n/g,"<br>");;
 popWidth=document.getElementById("popLayer").clientWidth;
 popHeight=document.getElementById("popLayer").clientHeight;
 if(MouseX+12+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24; else popLeftAdjust=0;
 if(MouseY+12+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24; else popTopAdjust=0;
 document.getElementById("popLayer").style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust;
 document.getElementById("popLayer").style.top=MouseY+12+document.body.scrollTop+popTopAdjust;
}

function ctlent(event) {
 if(postSubmited == false && (event.ctrlKey && event.keyCode == 13) || (event.altKey && event.keyCode == 83)) {
  if(this.document.input.pmsubmit) {
   postSubmited = true;
   this.document.input.pmsubmit.disabled = true;
   this.document.input.submit();
  } else if(validate(this.document.input)) {
   postSubmited = true;
   if(this.document.input.topicsubmit) this.document.input.topicsubmit.disabled = true;
   if(this.document.input.replysubmit) this.document.input.replysubmit.disabled = true;
   if(this.document.input.editsubmit) this.document.input.editsubmit.disabled = true;
   this.document.input.submit();
  }
 }
}
//表单检测，根据正则表达式
function checkall(form, prefix, checkall) {
 var checkall = checkall ? checkall : 'chkall';
 for(var i = 0; i < form.elements.length; i++) {
  var e = form.elements[i];
  if(e.name != checkall && (!prefix || (prefix && e.name.match(prefix)))) {
   e.checked = form.elements[checkall].checked;
  }
 }
}
//还不知道是什么
function findobj(n, d) {
 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 = findobj(n, d.layers[i].document);
 if(!x && document.getElementById) x = document.getElementById(n);
 return x;
}

//复制
function copycode(obj) {
 var rng = document.body.createTextRange();
 rng.moveToElementText(obj);
 rng.scrollIntoView();
 rng.select();
 rng.execCommand("Copy");
 rng.collapse(false);
}

function toggle_collapse(objname) {
 obj = findobj(objname);
 img = findobj(objname+"_img");
 collapsed = getcookie("discuz_collapse");
 cookie_start = collapsed ? collapsed.indexOf(objname) : -1;
 cookie_end = cookie_start + objname.length + 1;

 if(obj.style.display == "none") {
  obj.style.display = "";
  img_re = new RegExp("_yes//.gif$");
  img.src = img.src.replace(img_re, '_no.gif');
  if(cookie_start != -1) collapsed = collapsed.substring(0, cookie_start) + collapsed.substring(cookie_end, collapsed.length);
 } else {
  obj.style.display = "none";
  img_re = new RegExp("_no//.gif$");
  img.src = img.src.replace(img_re, '_yes.gif');
  if(cookie_start == -1) collapsed = collapsed + objname + " ";
 }

 expires = new Date();
 expires.setTime(expires.getTime() + (collapsed ? 86400 * 30 : -(86400 * 30 * 1000)));
 document.cookie = "discuz_collapse=" + escape(collapsed) + "; expires=" + expires.toGMTString() + "; path=/";
}
//滚轮改变图片的大小
function imgzoom(o) {
 if(event.ctrlKey) {
  var zoom = parseInt(o.style.zoom, 10) || 100;
  zoom -= event.wheelDelta / 12;
  if(zoom > 0) {
   o.style.zoom = zoom + '%';
  }
  return false;
 } else {
  return true;
 }
}
//根据cookie名称获得cookie的值
function getcookie(name) {
 var cookie_start = document.cookie.indexOf(name);
 var cookie_end = document.cookie.indexOf(";", cookie_start);
 return cookie_start == -1 ? '' : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length)));
}

if(!document.onmouseover) {
 document.onmouseover = function(e) {
  if (!e) showPopupText(window.event); else showPopupText(e);
 };
}