function valid() {
var themessage = "You are required to complete the following fields: \n";
var i;
var objForm = document.getElementById('form1');
var elem = objForm.elements;

for(i=1; i<elem.length; i++){
	fldName = elem[i].name
	fldName=fldName.slice(3,28)
	fldName = fldName.replace("_", " ")
	if(elem[i].value == ""){
   		themessage = themessage + fldName + '\n';
	}	
}


for(i=0; i<elem.length; i++){
	if(elem[i].name == "txtEmail_address"){
		//alert('check this field')
		if (!isValidEmail(elem[i].value)){
			if(themessage == "You are required to complete the following fields: \n"){
				themessage="";
			}
			themessage = themessage +'A valid e-mail address is required.'
		}
	}
}
if(themessage =="A valid e-mail address is required."){
	themessage = themessage + '\n Please amend and try again'
}

if(themessage =="You are required to complete the following fields: \n"){
	return true;
}

alert(themessage)
return false;

}




function isValidEmail(strEmail){
 validRegExp = /^(([a-zA-Z0-9\-\._]+)@(([a-zA-Z0-9\-_]+\.)+)([a-z]{2,3})(,(?!$))?)+$/;
 
    if (strEmail.search(validRegExp) == -1) 
   {
      return false;
    } 
    return true;
}