// whitespace characters
var whitespace = "\n\r\t ";

function isBlankSpace(str, len) {   
	var i;
	if ((str.length + 1) <= len) return true;
	for (i = 0; i < str.length; i++) {   
		// Check that current character isn't whitespace
		var chr = str.charAt(i);
		if (whitespace.indexOf(chr) == -1) return false;
	}
	// All characters are whitespace.
	return true;
}

function validate_yp_suppliers() {
	Form = document.frmyp_supplier;
	if ( (Form.category.options[Form.category.selectedIndex].value == "C_________") &&	
		(isBlankSpace(Form.product.value, 1)) ) {	
		alert("Please select category from list or enter product keywords")
		return false
	}	
	else {
      Form.submit()	
		return true
    }
}

function validate_yp_nita() {
	Form = document.frmyp_nita;
	if (isBlankSpace(Form.authority.value, 1) ) {	
		alert("Please enter at least 2 characters to perform authority search.")
		return false
	}	
	else {
      Form.submit()	
		return true
    }
}