var isMac = navigator.userAgent.indexOf("Mac") != -1;

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
	  if ((obj=MM_findObj(args[i]))!=null) { 
		v=args[i+2];
		if (isMac) {
			v='hidden';
		} else if (obj.style) { 
			obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; 
		}
		obj.visibility=v; 
  }
}
function hideall()
{MM_showHideLayers('dropMenu','','hide');}

function IK_CheckEmail(email){
// Email Address
  var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,9}(?:\.[a-z]{2})?)$/i;
  if ( filter.test(email))
        return true;
  else return false;
}