function insert_text(open,close)
{msgfield=(document.all)?document.all.req_message:((document.getElementById('afocus')!=null)?(document.getElementById('afocus').req_message):(document.getElementsByName('req_message')[0]));if(document.selection&&document.selection.createRange)
{msgfield.focus();sel=document.selection.createRange();sel.text=open+ sel.text+ close;msgfield.focus();}
else if(msgfield.selectionStart||msgfield.selectionStart=='0')
{var startPos=msgfield.selectionStart;var endPos=msgfield.selectionEnd;msgfield.value=msgfield.value.substring(0,startPos)+ open+ msgfield.value.substring(startPos,endPos)+ close+ msgfield.value.substring(endPos,msgfield.value.length);msgfield.selectionStart=msgfield.selectionEnd=endPos+ open.length+ close.length;msgfield.focus();}
else
{msgfield.value+=open+ close;msgfield.focus();}
return;}