ccorrect_btn.js

来自「一个js绘制工作流界面源码」· JavaScript 代码 · 共 39 行

var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);
function MouseOverBtn(){event.srcElement.className+="Hover";}
function MouseOutBtn() {event.srcElement.className=event.srcElement.className.substr(0,event.srcElement.className.indexOf("Hover"));}
function CorrectButton()
{
   var inputs=document.getElementsByTagName("INPUT");
   for(var i=0; i<inputs.length; i++)
   {
      var el = inputs[i];
      var elType = el.type.toLowerCase();
      var elClass = el.className.toLowerCase();
      var elLength = Math.ceil(el.value.replace(/[^\x00-\xff]/g,"**").length/2);
      if(elType!="button" && elType!="submit" && elType!="reset" || elClass!="bigbutton"&&elClass!="smallbutton")
         continue;
      
      if(elLength<=3)
         el.className+="A";
      else if(elLength==4)
         el.className+="B";
      else if(elLength>=5 && elLength<=7)
         el.className+="C";
      else if(elLength>=8 && elLength<=11)
         el.className+="D";
      else
         el.className+="E";
      
      if(is_ie)
      {
         el.attachEvent("onmouseover", MouseOverBtn);
         el.attachEvent("onmouseout",  MouseOutBtn);
      }
   }
}
if(is_ie)
   window.attachEvent("onload", CorrectButton);
else
   window.addEventListener("load", CorrectButton,false);