function clear_subs_form(elem, hidId){
  var forms_select = (document.getElementById(hidId)) ? (document.getElementById(hidId).value) : "";
	if(forms_select.indexOf(elem.name) >= 0){}
	else {
		forms_select += elem.name + ", ";
		elem.value = "";
	}	
	document.getElementById(hidId).value = forms_select;

}
function submit_sub(elem, hidId, form){
	var forms_select = (document.getElementById(hidId).value) ? (document.getElementById(hidId).value) : "";
	var elem = document.getElementById(elem);
	var winUrl = '';
	if(forms_select=='' || elem.value =='') return false;
	else {
		if(tx_subscribeform_pi1_url) {
			winUrl += tx_subscribeform_pi1_url
			if(form) {
				for(i = 0; i < form.elements.length; i++) {
					winUrl += '&' + form.elements[i].name + '=' + escape(form.elements[i].value);
				}
				var tx_subscribeform_pi1_window = window.open(winUrl, "", 'width=300,height=180');
			}
			return false;
		};

	};
}