// Trim leading and trailing spaces
function Trim(strToTrim) {
	while(strToTrim.charAt(0)==' '){strToTrim = strToTrim.substring(1,strToTrim.length);}
	while(strToTrim.charAt(strToTrim.length-1)==' '){strToTrim = strToTrim.substring(0,strToTrim.length-1);}
	return strToTrim;
	}

	// Validate email address
	function emailAddressIsValid(str){
	var emailAddressFormat = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,3}$/;
	if (!(emailAddressFormat.test(str))){
		return false;
	}
	return true;
	}


	
		
	function CheckEmail(frm){
			if (Trim(frm.txtEmail.value) == ""){alert("Please enter Email.");frm.txtEmail.focus();return false;}
			if (!emailAddressIsValid(Trim(frm.txtEmail.value))) {alert("Please enter a valid Email.");frm.txtEmail.focus();return false;}
			return true;
		}
		
	//check  info to be entered and valid
	function CheckForm(frm){
				
			if (Trim(frm.name.value) == ""){alert("Please enter First Name.");frm.name.focus();return false;}
			if (Trim(frm.sname.value) == ""){alert("Please enter Last Name.");frm.sname.focus();return false;}
			if (Trim(frm.email.value) != "None") {
			if (!emailAddressIsValid(Trim(frm.email.value))) {alert("Please enter a valid Email.");frm.email.focus();return false;}
			}
			if (Trim(frm.zip.value) == ""){alert("Please enter a ZIP Number.");frm.zip.focus();return false;}
			return true;
		}