function switchDisplay(id,imgsrc,mainimage)
{
	ctrl = document.getElementById(id);
		
	if (ctrl.style.display == "")
	{
		if(mainimage.name != '')
		{
			mainimage.src = "images/plus.gif";
			ctrl.style.display = "none";
		}
	}
	else
	{
		if(mainimage.name != '')
		{
			ctrl.style.display = "";
			mainimage.src="images/minus.gif";
		}
	}	
	//Close all other menu items
	var catids = document.getElementById('catids');
	catids = catids.value.split(",");
	var len = catids.length;
	for(var i=0;i<len;i++)
		if(catids[i]!=id)
		{
			menuItem = document.getElementById(catids[i]);
			menuItem.style.display="none";
			menuImageItem = document.getElementById("img"+catids[i]);
			if(menuImageItem) menuImageItem.src = "images/plus.gif";
		}
}

function Scroller_onmouseover(id)
{
	id.scrollAmount =0;
}

function Scroller_onmouseout(id)
{
	id.scrollAmount =1;
}

function emailCheck (emailStr) {
	
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		return false
	}
	
	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
    	return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
		  	if (IPArray[i]>255) {
		  		return false
		  	}
		}
	   return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3) {
   	return false
	}

	if (len<2) {
	   return false
	}
	
	return true;
}
function go(form) 
{
	var URL = form.selectmenu.value;
	if ( URL != "")
	{
		window.open(URL, '_blank');
		return false;
	}
	else
		return false;
}

function hienmenu(id)
{
	ctrl = document.getElementById(id);
	if (ctrl.style.display == "")
		ctrl.style.display = "none";
	else
		ctrl.style.display = "";
}



/***********************************************
* Carousel Slideshow II- By Harry Armadillo (http://www.codingforums.com/showthread.php?t=58814)
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
* Please keep this notice intact
***********************************************/

function carousel(params){
  if(!(params.width>0 && isFinite(params.width)))params.width=100;
  if(!(params.height>0 && isFinite(params.height)))params.height=100;
  if(!(params.sides>2 && isFinite(params.sides)))params.sides=4;
  if(!(params.steps>0 && params.steps<100 && isFinite(params.steps)))params.steps=20;
  if(!(params.speed>0 && isFinite(params.speed)))params.speed=8;
  if(!(params.image_border_width>=0 && isFinite(params.image_border_width)))params.image_border_width=0;
  if(isFinite(params.id)||!params.id)params.id='bad_id_given_'+Math.random();
  
  document.write("<div style='position:relative;overflow:hidden;' id='"+params.id.replace(/[^a-zA-Z0-9]+/g,'_')+"'></div>");
  var cdiv=document.getElementById(params.id.replace(/[^a-zA-Z0-9]+/g,'_'))
  cdiv.style.width=params.width+'px';
  cdiv.style.height=params.height+'px';
  cdiv.style.border=params.border;
  cdiv.style.position='relative';
  cdiv.style.overflow='hidden';
  cdiv.title=params.id;
    
  var counter=0,spinning=true,interval=Math.floor(60000/params.sides/params.steps/params.speed)-5;
  interval=isNaN(interval)?200:interval;
  var img_position=[],images=[],img_dimension=[];
  var img_index=params.images.length+1,img_index_cap=2*params.images.length;
  var faces=Math.ceil(params.sides/2), dimension, direction, targ, attr, faraway;

  function init(){
    if(params.direction=="left" || params.direction=="right"){
      direction=params.direction;
      dimension="width";
      }
    else if(params.direction=="top" || params.direction=="bottom"){
      direction=params.direction;
      dimension="height";
      }
    else {
      direction="left";
      dimension="width";
      }      
    faraway=(direction=="left"||direction=="top")?'-20000px':'20000px';
    cdiv.style[dimension]=params[dimension]/(params.size_mode=='image'?Math.sin(Math.PI/params.sides):1)+'px';
    var img=new Image();
    img.style.position='absolute';
    img.style[direction]=faraway;
    img.style.width=params.width-2*params.image_border_width+'px';
    img.style.height=params.height-2*params.image_border_width+'px';
    img.style.border=(params.image_border_width||0)+'px solid '+params.image_border_color;
  
    for(var i=0;i<params.images.length;i++){
      images[i]=img.cloneNode(true);
      images[i].src=params.images[i];
      if(params.links && params.links[i] && params.links[i]!=''){
        targ=params.lnk_targets && params.lnk_targets[i]||params.lnk_base||'new';
        if(targ=="_blank"){
          attr=(params.lnk_attr && params.lnk_attr[i])?",'"+params.lnk_attr[i]+"'":"";
          images[i].onclick=new Function("window.open('"+params.links[i]+"','"+targ+"'"+attr+")");
          }
        else if(targ.substr(0,1)=="_"){
          images[i].onclick=new Function(targ.substr(1)+".location='"+params.links[i]+"'");
          }
        else{
          attr=(params.lnk_attr && params.lnk_attr[i])?",'"+params.lnk_attr[i]+"'":"";
          images[i].onclick=new Function("var t='"+targ+"';if(window[t]){try{window[t].close()}catch(z){}}window[t]=window.open('"+params.links[i]+"',t"+attr+");window[t].focus()");
          }
        images[i].style.cursor=document.all?'hand':'pointer';
        }

      if(params.titles && params.titles[i] && params.titles[i]!='')
        images[i].title=params.titles[i];
      if(document.all)
        images[i].alt=images[i].title;
      images[i+params.images.length]=images[i];
      if(params.images.length==faces)
        images[i+2*params.images.length]=images[i];
      cdiv.appendChild(images[i]);
      }
  
    var face_size=params.size_mode=='image'?params[dimension]:params[dimension]*Math.sin(Math.PI/params.sides);
    var face_offset=params[dimension]*Math.cos(Math.PI/params.sides)/(params.size_mode=='image'?Math.sin(Math.PI/params.sides):1)/2-.5;
    var pi_piece=2*Math.PI/params.steps/params.sides;
    for(i=0;i<=params.steps*faces;i++){
      img_dimension[i]=face_size*Math.sin(pi_piece*i);
      img_position[i]=(i<params.steps*params.sides/2)?Math.floor(params[dimension]/2/(params.size_mode=='image'?Math.sin(Math.PI/params.sides):1)-face_offset*Math.cos(pi_piece*i)-img_dimension[i]/2)+'px':faraway;
      img_dimension[i]=img_dimension[i]-2*params.image_border_width>1?Math.ceil(img_dimension[i])-2*params.image_border_width+'px':'1px';
      }
    }
  init();

  cdiv.rotate = function(){
    setTimeout('document.getElementById("'+cdiv.id+'").rotate()',interval);
    if(!spinning) return;
    if(++counter>=params.steps){
      counter=0;
      if(++img_index>=img_index_cap)
        img_index=params.images.length;
      }
    images[img_index-faces].style[direction]=faraway;
    for(var i=faces-1;i>=0;i--){
      images[img_index-i].style[direction]=img_position[counter+i*params.steps];
      images[img_index-i].style[dimension]=img_dimension[counter+i*params.steps];
      }
    }
  cdiv.onmouseover=function(){
    spinning=false;
    }
  cdiv.onmouseout=function(){
    spinning=true;
    }
  setTimeout('document.getElementById("'+cdiv.id+'").rotate()',100);
  }