function getElementsByClassName(classname, node)  {
    if(!node) node = document.getElementsByTagName("body")[0];
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}

function cformcheck(){
	var checkme = getElementsByClassName("freq");
	var flag = false
	for (var i=0; i < checkme.length; i++){
		if (checkme[i].value == ""){
			flag = true;
		}
	}
	if (flag){
		alert("One or more of the required fields is blank. Please enter all required information and submit your form again.");
		return false;
	}
}