/* 
------------------------------------------
	Flipbox written by CrappoMan
	simonpatterson@dsl.pipex.com
------------------------------------------
*/
function flipBox(who) {
	var tmp; 
	if (document.images['b_' + who].src.indexOf('_on') == -1) { 
		tmp = document.images['b_' + who].src.replace('_off', '_on');
		document.getElementById('box_' + who).style.display = 'none';
		document.images['b_' + who].src = tmp;
	} else { 
		tmp = document.images['b_' + who].src.replace('_on', '_off');
		document.getElementById('box_' + who).style.display = 'block';
		document.images['b_' + who].src = tmp;
	} 
}

function addText(elname, strFore, strAft, formname) {
   if (formname == undefined) formname = 'inputform';
   if (elname == undefined) elname = 'message';
   element = document.forms[formname].elements[elname];
   element.focus();
   // for IE 
   if (document.selection) {
	   var oRange = document.selection.createRange();
	   var numLen = oRange.text.length;
	   oRange.text = strFore + oRange.text + strAft;
	   return false;
   // for FF and Opera
   } else if (element.setSelectionRange) {
      var selStart = element.selectionStart, selEnd = element.selectionEnd;
			var oldScrollTop = element.scrollTop;
      element.value = element.value.substring(0, selStart) + strFore + element.value.substring(selStart, selEnd) + strAft + element.value.substring(selEnd);
      element.setSelectionRange(selStart + strFore.length, selEnd + strFore.length);
			element.scrollTop = oldScrollTop;      
      element.focus();
   } else {
			var oldScrollTop = element.scrollTop;
      element.value += strFore + strAft;
			element.scrollTop = oldScrollTop;      
      element.focus();
	}
}

//modified by Wooya
function insertText(elname, what, formname) {
   if (formname == undefined) formname = 'inputform';
   if (document.forms[formname].elements[elname].createTextRange) {
       document.forms[formname].elements[elname].focus();
       document.selection.createRange().duplicate().text = what;
   } else if ((typeof document.forms[formname].elements[elname].selectionStart) != 'undefined') {
       // for Mozilla
       var tarea = document.forms[formname].elements[elname];
       var selEnd = tarea.selectionEnd;
       var txtLen = tarea.value.length;
       var txtbefore = tarea.value.substring(0,selEnd);
       var txtafter =  tarea.value.substring(selEnd, txtLen);
       var oldScrollTop = tarea.scrollTop;
       tarea.value = txtbefore + what + txtafter;
       tarea.selectionStart = txtbefore.length + what.length;
       tarea.selectionEnd = txtbefore.length + what.length;
       tarea.scrollTop = oldScrollTop;
       tarea.focus();
   } else {
       document.forms[formname].elements[elname].value += what;
       document.forms[formname].elements[elname].focus();
   }
}

function show_hide(msg_id) {
	msg_id.style.display = msg_id.style.display == 'none' ? 'block' : 'none';
}
/***********************************************
* Drop Down/ Overlapping Content- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

function getStyle(el,style)
{
	if(typeof el == "string")
		var element = document.getElementById(el);
	else
		var element = el;
	if (element.currentStyle)
		var value = element.currentStyle[style];
	else if (window.getComputedStyle)
		var value = document.defaultView.getComputedStyle(element,null).getPropertyValue(style);
	return value;
}

function getposOffset(overlay, offsettype){
   var totaloffset=(offsettype=='left')? overlay.offsetLeft : overlay.offsetTop;
   var parentEl=overlay.offsetParent;
   while (parentEl!=null) {
      if(getStyle(parentEl, "position") != "relative"){
	     totaloffset=(offsettype=='left')? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
      }
	  parentEl=parentEl.offsetParent;
   }
   return totaloffset;
}

function overlay(curobj, subobjstr, opt_position){
   if (document.getElementById){
      var subobj=document.getElementById(subobjstr)
      subobj.style.display=(subobj.style.display!='block')? 'block' : 'none'
      var xpos=getposOffset(curobj, 'left')+((typeof opt_position!='undefined' && opt_position.indexOf('right')!=-1)? -(subobj.offsetWidth-curobj.offsetWidth) : 0) 
      var ypos=getposOffset(curobj, 'top')+((typeof opt_position!='undefined' && opt_position.indexOf('bottom')!=-1)? curobj.offsetHeight : 0)
      subobj.style.left=xpos+'px'
      subobj.style.top=ypos+'px'
      return false
   }
   else
   return true
}

function overlayclose(subobj){
document.getElementById(subobj).style.display='none'
}