/* YAV v1.1.3 LGPL license - Copyright (C) 2005 <f.crivellaro@gmail.com> http://yav.sourceforge.net */
var undef; function performCheck(formName, strRules, alertType) { var rules = makeRules(strRules); this.f = document.forms[formName]; if( !this.f ) { debug('DEBUG: could not find form object ' + formName); return null; } var errors = new Array(); var ix = 0; if (rules.length) { for(var i=0; i<rules.length; i++) { var aRule = rules[i]; highlight(f.elements[aRule.el], inputclassnormal); } } else { highlight(f.elements[rules.el], inputclassnormal); } if (rules.length) { for(var i=0; i<rules.length; i++) { var aRule = rules[i]; var anErr = null; if (aRule==null) { } else if (aRule.ruleType=='pre-condition' || aRule.ruleType=='post-condition') { } else if (aRule.ruleName=='implies') { pre = aRule.el; post = aRule.comparisonValue; var oldClassName = f.elements[rules[pre].el].className; if ( checkRule(f, rules[pre])==null && checkRule(f, rules[post])!=null ) { anErr = aRule.alertMsg; } else if ( checkRule(f, rules[pre])!=null ) { f.elements[rules[pre].el].className = oldClassName; } } else { anErr = checkRule(f, aRule); } if ( anErr!=null ) { errors[ix] = anErr; ix++; } } } else { var myRule = rules; err = checkRule(f, myRule); if ( err!=null ) { errors[0] = err; } } return displayAlert(errors, alertType); } function checkKeyPress(ev, obj, strRules) { var keyCode = null; if ( getBrowser()=='msie' ) { keyCode = window.event.keyCode; } else if ( getBrowser()=='netscape' || getBrowser()=='firefox' ) { keyCode = ev.which; } var rules = makeRules(strRules); var keyAllowed = true; if (rules.length) { for(var i=0; i<rules.length; i++) { var aRule = rules[i]; if (aRule.ruleName=='keypress' && aRule.el==obj.name) { keyAllowed = isKeyAllowed(keyCode, aRule.comparisonValue); break; } } } else { var aRule = rules; if (aRule.ruleName=='keypress' && aRule.el==obj.name) { keyAllowed = isKeyAllowed(keyCode, aRule.comparisonValue); } } if (!keyAllowed) { if ( getBrowser()=='msie' ) { window.event.keyCode=0; } else if ( getBrowser()=='netscape' || getBrowser()=='firefox' ) { ev.initKeyEvent('keypress', true, true, window, false, false, true, false, 0, 0x00, obj); } } return false; } function displayAlert(messages, alertType) { var retval =null; if (alertType=='classic') { retval = displayClassic(messages); } else if (alertType=='innerHtml') { retval = displayInnerHtml(messages); }else if (alertType=='jsVar') { retval = displayJsVar(messages); } else { debug('DEBUG: alert type ' + alertType + ' not supported'); } return retval; } function displayClassic(messages) { var str = ''; if ( messages!=null && messages.length>0 ) { if (strTrim(HEADER_MSG).length > 0) { str += HEADER_MSG + '\n\n'; } for (var i=0; i<messages.length; i++) { str += ' ' + messages[i] + '\n'; } if (strTrim(FOOTER_MSG).length > 0) { str += '\n' + FOOTER_MSG; } alert(str); return false; } else { return true; } } function displayInnerHtml(messages) { if ( messages!=null && messages.length>0 ) { var str = ''; if (strTrim(HEADER_MSG).length > 0) { str += HEADER_MSG; } str += '<ul>'; for (var i=0; i<messages.length; i++) { str += '<li>'+messages[i]+'</li>'; } str += '</ul>'; if (strTrim(FOOTER_MSG).length > 0) { str += FOOTER_MSG; } document.getElementById(errorsdiv).innerHTML = str; document.getElementById(errorsdiv).className = innererror; document.getElementById(errorsdiv).style.display = 'block'; return false; } else { document.getElementById(errorsdiv).innerHTML = ''; document.getElementById(errorsdiv).className = ''; document.getElementById(errorsdiv).style.display = 'none'; return true; } } function displayJsVar(messages) { document.getElementById(errorsdiv).className = ''; document.getElementById(errorsdiv).style.display = 'none'; if ( messages!=null && messages.length>0 ) { var str = ''; str += '<script>var jsErrors;</script>'; document.getElementById(errorsdiv).innerHTML = str; jsErrors = messages; return false; } else { document.getElementById(errorsdiv).innerHTML = '<script>var jsErrors;</script>'; return true; } } function rule(el, ruleName, comparisonValue, alertMsg, ruleType) { if ( !checkArguments(arguments) ) { return false; } this.el = el; this.ruleName = ruleName; this.comparisonValue = comparisonValue; this.ruleType = ruleType; if (alertMsg==undef || alertMsg==null) { this.alertMsg = getDefaultMessage(el, ruleName, comparisonValue); } else { this.alertMsg = alertMsg; } } function checkRule(f, myRule) { retVal = null; if (myRule != null) { if (myRule.ruleName=='custom') { var customFunction = ' retVal = ' + myRule.el; eval(customFunction); } else { el = f.elements[myRule.el]; if (el == null) { debug('DEBUG: could not find element ' + myRule.el); return null; } var err = null; if(el.type) { if(el.type=='hidden'||el.type=='text'||el.type=='password'||el.type=='textarea') { err = checkText(el, myRule); } else if(el.type=='checkbox') { err = checkCheckbox(el, myRule); } else if(el.type=='select-one') { err = checkSelOne(el, myRule); } else if(el.type=='select-multiple') { err = checkSelMul(el, myRule); } else if(el.type=='radio') { err = checkRadio(el, myRule); } else { debug('DEBUG: type '+ el.type +' not supported'); } } else { err = checkRadio(el, myRule); } retVal = err; } } return retVal; } function checkArguments(args) { if (args.length < 4) { debug('DEBUG: rule requires four arguments at least'); return false; } else if (args[0]==null || args[1]==null) { debug('DEBUG: el and ruleName are required'); return false; } return true; } function checkRadio(el, myRule) { var err = null; if (myRule.ruleName=='required') { var radios = el; var found=false; if (isNaN(radios.length) && radios.checked) { found=true; } else { for(var j=0; j < radios.length; j++) { if(radios[j].checked) { found=true; break; } } } if( !found ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='equal') { var radios = el; var found=false; if (isNaN(radios.length) && radios.checked) { if (radios.value==myRule.comparisonValue) { found=true; } } else { for(var j=0; j < radios.length; j++) { if(radios[j].checked) { if (radios[j].value==myRule.comparisonValue) { found=true; break; } } } } if( !found ) { err = myRule.alertMsg; } } else { debug('DEBUG: rule ' + myRule.ruleName + ' not supported for radio'); } return err; } function checkText(el, myRule) { err = null; if (trimenabled) { el.value = strTrim(el.value); } if (myRule.ruleName=='required') { if ( el.value==null || el.value=='' ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='equal') { if ( el.value!=myRule.comparisonValue ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='numeric') { reg = new RegExp("^[0-9]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='alphabetic') { reg = new RegExp("^[A-Za-z]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='alphanumeric') { reg = new RegExp("^[A-Za-z0-9]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='alnumhyphen') { reg = new RegExp("^[A-Za-z0-9\-_]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='alnumhyphenat') { reg = new RegExp("^[A-Za-z0-9\-_@]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='alphaspace') { reg = new RegExp("^[A-Za-z0-9\-_ \n\r\t]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='email') { reg = new RegExp("^(([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}){0,1}$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='maxlength') { if ( isNaN(myRule.comparisonValue) ) { debug('DEBUG: comparisonValue for rule ' + myRule.ruleName + ' not a number'); }else if ( el.value.length > myRule.comparisonValue ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='minlength') { if ( isNaN(myRule.comparisonValue) ) { debug('DEBUG: comparisonValue for rule ' + myRule.ruleName + ' not a number'); } else if ( el.value.length < myRule.comparisonValue ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='numrange') { reg = new RegExp("^[0-9]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } else { regRange = new RegExp("^[0-9]-[0-9]*$"); if ( !regRange.test(myRule.comparisonValue) ) { debug('DEBUG: comparisonValue for rule ' + myRule.ruleName + ' not in format number1-number2'); } else { rangeVal = myRule.comparisonValue.split('-'); if (eval(el.value)<eval(rangeVal[0]) || eval(el.value)>eval(rangeVal[1])) { highlight(el, inputclasserror); err = myRule.alertMsg; } } } } else if (myRule.ruleName=='regexp') { reg = new RegExp(myRule.comparisonValue); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); err = myRule.alertMsg; } } else if (myRule.ruleName=='integer') { err = checkInteger(el, myRule); } else if (myRule.ruleName=='double') { err = checkDouble(el, myRule); } else if (myRule.ruleName=='date') { err = checkDate(el, myRule); } else if (myRule.ruleName=='date_lt') { err = checkDateLessThan(el, myRule, false); } else if (myRule.ruleName=='date_le') { err = checkDateLessThan(el, myRule, true); } else if (myRule.ruleName=='keypress') { } else { debug('DEBUG: rule ' + myRule.ruleName + ' not supported for ' + el.type); } return err; } function checkInteger(el, myRule) { reg = new RegExp("^[-+]{0,1}[0-9]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); return myRule.alertMsg; } } function checkDouble(el, myRule) { var sep = DECIMAL_SEP; reg = new RegExp("^[-+]{0,1}[0-9]*[" + sep + "]{0,1}[0-9]*$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); return myRule.alertMsg; } } function checkDate(el, myRule) { error = null; if (el.value!='') { var dateFormat = DATE_FORMAT; ddReg = new RegExp("dd"); MMReg = new RegExp("MM"); yyyyReg = new RegExp("yyyy"); if ( !ddReg.test(dateFormat) || !MMReg.test(dateFormat) || !yyyyReg.test(dateFormat) ) { debug('DEBUG: locale format ' + dateFormat + ' not supported'); } else { ddStart = dateFormat.indexOf('dd'); MMStart = dateFormat.indexOf('MM'); yyyyStart = dateFormat.indexOf('yyyy'); } strReg = dateFormat.replace('dd','[0-9]{2}').replace('MM','[0-9]{2}').replace('yyyy','[0-9]{4}'); reg = new RegExp("^" + strReg + "$"); if ( !reg.test(el.value) ) { highlight(el, inputclasserror); error = myRule.alertMsg; } else { dd = el.value.substring(ddStart, ddStart+2); MM = el.value.substring(MMStart, MMStart+2); yyyy = el.value.substring(yyyyStart, yyyyStart+4); if ( !checkddMMyyyy(dd, MM, yyyy) ) { highlight(el, inputclasserror); error = myRule.alertMsg; } } } return error; } function checkDateLessThan(el, myRule, isEqualAllowed) { error = null; var isDate = checkDate(el, myRule)==null ? true : false; if ( isDate && el.value!='' ) { var dateFormat = DATE_FORMAT; ddStart = dateFormat.indexOf('dd'); MMStart = dateFormat.indexOf('MM'); yyyyStart = dateFormat.indexOf('yyyy'); dd = el.value.substring(ddStart, ddStart+2); MM = el.value.substring(MMStart, MMStart+2); yyyy = el.value.substring(yyyyStart, yyyyStart+4); myDate = "" + yyyy + MM + dd; strReg = dateFormat.replace('dd','[0-9]{2}').replace('MM','[0-9]{2}').replace('yyyy','[0-9]{4}'); reg = new RegExp("^" + strReg + "$"); var isMeta = myRule.comparisonValue.indexOf('$')==0 ? true : false; var comparisonDate = isMeta ? this.f.elements[myRule.comparisonValue.substr(1)].value : myRule.comparisonValue; if ( !reg.test(comparisonDate) ) { highlight(el, inputclasserror); error = myRule.alertMsg; } else { cdd = comparisonDate.substring(ddStart, ddStart+2); cMM = comparisonDate.substring(MMStart, MMStart+2); cyyyy = comparisonDate.substring(yyyyStart, yyyyStart+4); cDate = "" + cyyyy + cMM + cdd; if (isEqualAllowed) { if ( !checkddMMyyyy(cdd, cMM, cyyyy) || myDate>cDate ) { highlight(el, inputclasserror); error = myRule.alertMsg; } } else { if ( !checkddMMyyyy(cdd, cMM, cyyyy) || myDate>=cDate ) { highlight(el, inputclasserror); error = myRule.alertMsg; } } } } else { if ( el.value!='' ) { highlight(el, inputclasserror); error = myRule.alertMsg; } } return error; } function checkddMMyyyy(dd, MM, yyyy) { retVal = true; if ( (dd > 31) || (MM > 12) || (dd==31 && (MM==2 || MM==4 || MM==6 || MM==9 || MM==11) ) || (dd >29 && MM==2) || (dd==29 && (MM==2) && ((yyyy%4 > 0) || (yyyy%4==0 && yyyy%100==0 && yyyy%400>0 )) )) { retVal = false; } return retVal; } function checkCheckbox(el, myRule) { if (myRule.ruleName=='required') { if ( !el.checked ) { highlight(el, inputclasserror); return myRule.alertMsg; } } else if (myRule.ruleName=='equal') { if ( !el.checked || el.value!=myRule.comparisonValue ) { highlight(el, inputclasserror); return myRule.alertMsg; } } else { debug('DEBUG: rule ' + myRule.ruleName + ' not supported for ' + el.type); } } function checkSelOne(el, myRule) { if (myRule.ruleName=='required') { var found = false; var inx = el.selectedIndex; if(inx>=0 && el.options[inx].value) { found = true; } if ( !found ) { highlight(el, inputclasserror); return myRule.alertMsg; } } else if (myRule.ruleName=='equal') { var found = false; var inx = el.selectedIndex; if(inx>=0 && el.options[inx].value==myRule.comparisonValue) { found = true; } if ( !found ) { highlight(el, inputclasserror); return myRule.alertMsg; } } else { debug('DEBUG: rule ' + myRule.ruleName + ' not supported for ' + el.type); } } function checkSelMul(el, myRule) { if (myRule.ruleName=='required') { var found = false; opts = el.options; for(var i=0; i<opts.length; i++) { if(opts[i].selected && opts[i].value) { found = true; break; } } if ( !found ) { highlight(el, inputclasserror); return myRule.alertMsg; } } else if (myRule.ruleName=='equal') { var found = false; opts = el.options; for(var i=0; i<opts.length; i++) { if(opts[i].selected && opts[i].value==myRule.comparisonValue) { found = true; break; } } if ( !found ) { highlight(el, inputclasserror); return myRule.alertMsg; } } else { debug('DEBUG: rule ' + myRule.ruleName + ' not supported for ' + el.type); } } function debug(msg) { if (debugmode) { alert(msg); } } function strTrim(str) { return str.replace(/^\s+/,'').replace(/\s+$/,''); } function makeRules(strRules) { var rules=new Array(); if (strRules.length) { for(var i=0; i<strRules.length; i++) { rules[i] = splitRule(strRules[i]); } } else { rules[0] = splitRule(strRules); } return rules; } function splitRule(strRule) { var retval = null; if (strRule!=undef) { params = strRule.split('|'); switch (params.length) { case 2: retval = new rule(params[0], params[1], null, null, null); break; case 3: if (threeParamRule(params[1])) { retval = new rule(params[0], params[1], params[2], null, null); } else if (params[2]=='pre-condition' || params[2]=='post-condition') { retval = new rule(params[0], params[1], null, 'foo', params[2]); } else { retval = new rule(params[0], params[1], null, params[2], null); } break; case 4: if (threeParamRule(params[1]) && (params[3]=='pre-condition' || params[3]=='post-condition')) { retval = new rule(params[0], params[1], params[2], 'foo', params[3]); } else { retval = new rule(params[0], params[1], params[2], params[3], null); } break; default: debug('DEBUG: wrong definition of rule'); } } return retval; } function threeParamRule(ruleName) { return (ruleName=='equal' || ruleName=='minlength' || ruleName=='maxlength' || ruleName=='date_lt' || ruleName=='date_le' || ruleName=='implies' || ruleName=='regexp' || ruleName=='numrange' || ruleName=='keypress') ? true : false; } function highlight(el, clazz) { if (el!=undef && inputhighlight) { el.className = clazz; } } function getDefaultMessage(el, ruleName, comparisonValue) { var msg = DEFAULT_MSG; if (ruleName=='required') { msg = REQUIRED_MSG.replace('{1}', el); } else if (ruleName=='minlength') { msg = MINLENGTH_MSG.replace('{1}', el).replace('{2}', comparisonValue); } else if (ruleName=='maxlength') { msg = MAXLENGTH_MSG.replace('{1}', el).replace('{2}', comparisonValue); } else if (ruleName=='numrange') { msg = NUMRANGE_MSG.replace('{1}', el).replace('{2}', comparisonValue); } else if (ruleName=='date') { msg = DATE_MSG.replace('{1}', el); } else if (ruleName=='numeric') { msg = NUMERIC_MSG.replace('{1}', el); } else if (ruleName=='integer') { msg = INTEGER_MSG.replace('{1}', el); } else if (ruleName=='double') { msg = DOUBLE_MSG.replace('{1}', el); } else if (ruleName=='equal') { msg = EQUAL_MSG.replace('{1}', el).replace('{2}', comparisonValue); } else if (ruleName=='alphabetic') { msg = ALPHABETIC_MSG.replace('{1}', el); } else if (ruleName=='alphanumeric') { msg = ALPHANUMERIC_MSG.replace('{1}', el); } else if (ruleName=='alnumhyphen') { msg = ALNUMHYPHEN_MSG.replace('{1}', el); } else if (ruleName=='alnumhyphenat') { msg = ALNUMHYPHENAT_MSG.replace('{1}', el); } else if (ruleName=='alphaspace') { msg = ALPHASPACE_MSG.replace('{1}', el); } else if (ruleName=='email') { msg = EMAIL_MSG.replace('{1}', el); } else if (ruleName=='regexp') { msg = REGEXP_MSG.replace('{1}', el).replace('{2}', comparisonValue); } else if (ruleName=='date_lt') { if (comparisonValue.substring(0, 1)=='$') { comparisonValue = comparisonValue.substring(1, comparisonValue.length) } msg = DATE_LT_MSG.replace('{1}', el).replace('{2}', comparisonValue); } else if (ruleName=='date_le') { if (comparisonValue.substring(0, 1)=='$') { comparisonValue = comparisonValue.substring(1, comparisonValue.length) } msg = DATE_LE_MSG.replace('{1}', el).replace('{2}', comparisonValue); } return msg; } function getBrowser() { brs=navigator.userAgent.toLowerCase(); var retval; if (brs.search(/msie\s(\d+(\.?\d)*)/)!=-1) { retval='msie'; } else if (brs.search(/netscape[\/\s](\d+([\.-]\d)*)/)!=-1) { retval='netscape'; } else if (brs.search(/firefox[\/\s](\d+([\.-]\d)*)/)!=-1) { retval='firefox'; } else { retval='unknown'; } return retval; } function isKeyAllowed(keyCode, charsAllowed) { retval = false; var aCharCode; if (keyCode==8) { retval = true; } else { for(var i=0; i<charsAllowed.length; i++) { aCharCode = charsAllowed.charCodeAt(i); if (aCharCode==keyCode) { retval = true; break; } } } return retval; }