function DisableForm (formname)  

	      {
                browser = new String(navigator.userAgent);
			    if (browser.match(/IE/g))  { for (i=1; i<formname.elements.length; i++)   {   if (formname.elements[i].type == 'submit')  {  formname.elements[i].disabled = true;  } } }
		        formname.submit();
		  }
		  
      function Disable (formname)  
	      {
		      for (i=1; i<formname.elements.length; i++)   {   if (formname.elements[i].type == 'text')  {  formname.elements[i].onFocus = blur;  }  }
		  }

//validasi newsletter form
function submit_form(value) {
		if(value.newsletter.value == "") {
			alert("Please complete the email field with valid email address.");
			value.newsletter.select();
			return false;
		}
		else if((value.newsletter.value.indexOf('@') < 0) || ((value.newsletter.value.charAt(value.newsletter.value.length-4) != '.') && 			(value.txtemail.value.charAt(value.txtemail.value.length-3) != '.'))) 
			{alert("You type wrong email address, please try again.");
			value.newsletter.select();
			return false;
		}
		else {
			return true;
		}
	}