/* Script written by Mugi (mugi@wa2.so-net.ne.jp)          */
/*   2nd Edition by Raelian(2005/02/10)-(2005/08/15)       */
/*   http://painter.homeip.net/~raelian/tag/enclose.html   */
/*   3rd Customize by Narusawa(2005/08/16)                 */
/*   http://caelum.skr.jp/                                 */
/*   4th Customize by くらげ(2008/11/3)                    */
/*   http://kurageya.xrea.jp/                              */

var sel_length, end_length=0, start_length=0;
var bl=0;
var el=null;
function get_pos(d){
if( bl != 1 && bl != 2 ) return;
if( d ){ el=d; }else{ return; }
 var ret=0;
 if( bl==1 ) {
   var sel=document.selection.createRange();
   if( !sel ) return;
   sel_length = sel.text.length;
   var r=d.createTextRange();
   var all=r.text.length;
   r.moveToPoint(sel.offsetLeft,sel.offsetTop);
   r.moveEnd("textedit");

end_length=r.text.length;
start_length=all-end_length;
} else if( bl==2 ) {
start_length=d.selectionStart;
end_length=d.value.length - d.selectionEnd;
sel_length=d.selectionEnd-start_length;
}
}

function atach_focus(ln){
if( bl == 1 ){
var e=el.createTextRange();
var tx=el.value.substr(0, ln);
var pl=tx.split(/¥n/);
e.collapse(true);
e.moveStart("character",ln-pl.length+1);
e.text=e.text+"";
e.collapse(false);
e.select();
} else if( bl == 2 ){
el.setSelectionRange(ln, ln);
}
el.focus();
}

function enclose(s, e){
if( !el ){
if( bl != 1 && bl != 2 ){
el=document.getElementById("Message");
}else{
return;
}
}

var flag2=0;

if( bl == 1 ){
var sel=document.selection.createRange().text;
if( sel ){
var len1, len2, lens, dat;
dat=el.createTextRange().text;
len1=dat.length;
lens=sel.length;
if( len1 != lens ){
document.selection.createRange().text=sel;
len2=el.createTextRange().text.length;
}
document.selection.createRange().text=s+sel+e;
if( len1 != len2 && len1 != lens ){
document.selection.createRange().text+="¥n";
}
flag2=1;
}
}
if( bl == 4 || bl == 3 ){
var str=document.getElementById("Message").value;
document.getElementById("Message").value=str+s+e;
} else if( bl && flag2 == 0 ){
var itext=el.value;
var click_s=itext.substr(0, start_length);
var click_m=itext.substr(start_length, sel_length);
var click_e=itext.substr(start_length+sel_length, end_length);
el.value=click_s + s + click_m + e + click_e;
}

atach_focus(s.length+e.length+start_length+sel_length);
}

function convert(s, e){
if( !el ) return;
if( (bl!=1) && (bl!=2) ){
el.focus();
return;
}

if( bl == 1 ){
var flag=0;
var sel=document.selection.createRange().text;
if( sel ){
var len1=el.createTextRange().text.length;
document.selection.createRange().text=sel;
var len2=el.createTextRange().text.length;
if( len1 != len2 ){
flag = 1;
}
var cnv = sel.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;");
document.selection.createRange().text=cnv;
if( flag ){
document.selection.createRange().text+="¥n";
}
}
}else{
var itext=el.value;
var click_s=itext.substr(0, start_length);
var click_m=itext.substr(start_length, sel_length);
var click_e=itext.substr(start_length+sel_length, end_length);
var cnv = click_m.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;");
el.value=click_s + cnv + click_e;
}
atach_focus(start_length+cnv.length);
}
function fstins(af){
if( !el ) return;
if( (bl!=1) && (bl!=2) ){
el.focus();
return;
}

if( bl == 1 && start_length < 0 ){
var flag=0;
var sel=document.selection.createRange().text;
if( sel ){
var len1=el.createTextRange().text.length;
document.selection.createRange().text=sel;
var len2=el.createTextRange().text.length;
if( len1 != len2 ){
flag = 1;
}
var cnv=sel.replace(/¥n/g, "¥n"+af);
document.selection.createRange().text=cnv;
if( flag ){
document.selection.createRange().text+="¥n";
}
}
}else{
var itext=el.value;
if( start_length ){
if( itext.substr(start_length-1,1) == "¥n" ){
start_length--;
}
}
var click_s=itext.substr(0, start_length);
var click_m=itext.substr(start_length, sel_length);
var click_e=itext.substr(start_length+sel_length, end_length);
var sel = click_m.replace(/¥n/g, "¥n"+af);
if( start_length==0 ){
sel=af + sel;
}
el.value=click_s + sel + click_e;
}
atach_focus(start_length+sel.length);
}

var tmstr=0;
function gettmstr(){
var tmn=new Date();
var tms=tmn.getTime();
if( tmstr == tms ){
tms++;
}
tmstr=tms;
}