function checkInt(field, low, high, def) {
	i=parseInt(field.value);
	if ((isNaN(i)) || (i<low) || (i > high))
	{	window.alert("Please enter a number between "+ low + " and " + high );
		field.value=def;
		field.focus();

	}
}

function checkFloat(field, low, high, def) {
	i=parseFloat(field.value);
	if ((isNaN(i)) || (i<low) || (i > high))
	{	window.alert("Please enter a number between "+ low + " and " + high );
		field.value=def;
		field.focus();

	}
}

function checkEndorser(field) {
	if (field.value.length>5) {
		document.supporterform.Endorser.checked=true;
	}
	else {
		document.supporterform.Endorser.checked=false;
	}

}

function checkContributorForm(contributorform) {

	returncode=true;
	msgiffalse="";

	if (contributorform.First_Name.value.length==0) {
		msgiffalse=msgiffalse+"* Please enter a first name\n";
		returncode=false;

	}

	if (contributorform.Last_Name.value.length==0) {
		msgiffalse=msgiffalse+"* Please enter a last name\n";
		returncode=false;

	}

	if (contributorform.Street_1.value.length==0) {
		msgiffalse=msgiffalse+"* Please enter a street address\n";
		returncode=false;

	}

	if (contributorform.City.value.length==0) {
		msgiffalse=msgiffalse+"* Please enter a city\n";
		returncode=false;

	}

	if ((contributorform.Zip.value.length!=5) && (contributorform.Zip.value.length!=9)) {
			msgiffalse=msgiffalse+"* Please enter a valid ZIP code\n";
			returncode=false;

	}

	radio_amount=0;
	for (counter = 0; counter < contributorform.contribution_amount.length; counter++)
	{
	if (contributorform.contribution_amount[counter].checked) {
	    radio_amount=contributorform.contribution_amount[counter].value;
	}
	}
	if (radio_amount==-1) {
		myamount=contributorform.contribution_amount_other.value;
	}
	else {
		myamount=radio_amount;

	}

	if (!(parseInt(myamount)>=5 && parseInt(myamount)<=500) || (parseInt(myamount)!=myamount)    ) {
		msgiffalse=msgiffalse+"* Contribution amount must be whole dollar amount greater than $5 and less than maximum allowable contribution.\n";
		returncode=false;
		contributorform.contribution_amount_other.value='';

	}



	if (returncode==false) {window.alert(msgiffalse);}
	return returncode;


}