myalert.js

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//programming by M. 2006.09.19

document.write('<div id="loaderror" style="position:absolute;width:438px;height:201px;background-color:#999999;" style="filter:Alpha(opacity=80);display:none"><img id="errorimage" border=1 width=436 height=199/></div>');
var alertTimeOut;
var clickTimeOut;
var URLERROR=1;
var CONNECTERROR=2;
var ALERTSHOWTIME=5000;
var ALERTINTERVALTIME=250;
var urlerrimg = new Image();
var connecterrimg = new Image();
urlerrimg.src="urlerr.gif";
connecterrimg.src="connecterr.gif"
function myalert(mod)
{
   document.getElementById("loaderror").style.display="none";
   window.clearTimeout(alertTimeOut);
   switch (mod) {
   case URLERROR :
       document.getElementById("errorimage").src=urlerrimg.src;
       break;
   case CONNECTERROR :
       document.getElementById("errorimage").src=connecterrimg.src;
       break;
   } 
   alertposition();
   showalert();
}

function alertposition()
{
   var loaderrdiv = document.getElementById("loaderror");
	 loaderrdiv.style.left=(document.body.clientWidth/2-438/2)+"px";
   loaderrdiv.style.top=(document.body.scrollTop+document.body.clientHeight/2-201/2)+"px";
   return true;
}

function hidealert()
{
window.clearTimeout(clickTimeOut);
document.body.onclick=myalert_bodyOnclick_tmpFunc;
document.body.onscroll=null;
window.clearTimeout(alertTimeOut);
document.getElementById("loaderror").style.display="none";
return true;
}
var myalert_bodyOnclick_tmpFunc=document.body.onclick;
function showalert()
{
window.clearTimeout(clickTimeOut);
document.body.onclick=myalert_bodyOnclick_tmpFunc;
window.clearTimeout(alertTimeOut);
alertTimeOut=window.setTimeout('hidealert()',ALERTSHOWTIME);
document.getElementById("loaderror").style.display="";
clickTimeOut=window.setTimeout('document.body.onclick=hidealert;document.body.onscroll=alertposition;',ALERTINTERVALTIME);
return true;
}