function show_popup(str,x)
{
  var arg = 'resizable=yes, toolbar=no,location=no,directories=no,addressbar=no,scrollbars=yes,status=no,menubar=no,width=620,height=620,top=20,left=250';
  var newWindow  =  window.open(str, "_blank", arg);
  var ExpireDate = new Date ();
  ExpireDate.setTime(ExpireDate.getTime() + (1 * 24 * 3600 * 1000));
  document.cookie = "IsImg=" + x + ((1 == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}

function ch_img(){ 
	if (document.cookie.length > 0)	{
			begin = document.cookie.indexOf("IsImg=");
			if (begin != -1) {
				begin += "IsImg=".length;
				end = document.cookie.indexOf(";", begin);
				if (end == -1) end = document.cookie.length;
				y = unescape(document.cookie.substring(begin, end)); 
			}
	}
    document.getElementById('xx').src = y;  
}

function closeWin(){
	window.close('footleg-causes.html');
	window.close('footleg-treatment.html');
	window.close('handfatigue-causes.html');
	window.close('handfatigue-treatment.html');
	window.close('heelpain-causes.html');
	window.close('heelpain-treatment.html');
	window.close('back-causes.html');
	window.close('back-treatment.html');
	
}