/* combines email validator script with required field validator script */

function checkinput(toCheck) {
	if ( checkemail(toCheck.mailfrom) ) {
		if ( checkblanks(toCheck) ) {
			return true;
		}
	}
	return false;
 }

/* DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/) */

function echeck(str) {
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		/* check for missing at */
		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
			return false
		}
		/* check for missing dot */
		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
			return false
		}
		/* check for multiple at */
		if (str.indexOf(at,(lat+1))!=-1){
			return false
		}
		/* check for at and dot side by side */
		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
			return false
		}
		/* check for dot AFTER at -- wouldn't compare of lat and ldot work better? */
		if (str.indexOf(dot,(lat+2))==-1){
			return false
		}
		/* check for any spaces */
		if (str.indexOf(" ")!=-1){
			return false
		}
 		return true					
	}

function checkemail(toCheck){
	if ((toCheck.value == null) || (toCheck.value == "")) {
		return true
	}
	if (echeck(toCheck.value) == false) {
	    alert("The address you entered is not a valid email address. If you do not have a valid email address, leave it blank.");
			toCheck.select();	/* highlight the bad field */
/*		toCheck.value=""; */ /*	erase what they entered. I think this is rude. */
		return false;
	}
	return true;
 }


function checkblanks(form) {
/*	alert('name: ' + toCheck.name); */
	len = (form.length);
	for (i = 0; i < len; i++) {
		eName = form.elements[i].name;
		eVal = form.elements[i].value;
		if ((eName[0] == '*') && (eVal == '')) {
			alert('All fields with an * next to them must be filled in.\n' + eName + ' is empty!');
	    form.element[i].focus();
	    return false;
		}
	}
	return true;
}