/* This script and many more are available free online at The JavaScript Source :: http://javascript.internet.com Created by: Amit Wadhwa :: http://amitwadhwa.fcpages.com/javascript.com/formvalidator.html */ function check(formname, submitbutton) { var errors = ''; errors += checkSelect(formname, 'model', 'Model size'); errors += checkRadio(formname, 'color', 'Color'); checkThisForm(formname, submitbutton, errors); } function checkThisForm(formname, submitbutton, errors) { if (errors == '') { eval(formname+'.'+submitbutton+'.disabled=true'); eval('document.'+formname+'.submit()'); } else { alert(errors); } } function checkText(formname, textboxname, displaytext) { var localerror = ''; if(Trim(eval('document.'+formname+'.'+textboxname+'.value'))=='') { localerror = '- '+displaytext+' is Required.\n'; } else localerror = ''; return localerror; } function checkNum(formname, textboxname, displaytext) { var localerror = ''; if(isNaN(eval('document.'+formname+'.'+textboxname+'.value'))) { localerror = '- '+displaytext+' Should Be A Number With No Spaces.\n'; } else localerror = ''; return localerror; } function checkSpaces(formname, textboxname, displaytext) { var valid = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_'; // define valid characters var localerror = ''; if(!isValid(Trim(eval('document.'+formname+'.'+textboxname+'.value')), valid)) { localerror = '- '+displaytext+' Should Not Contain Spaces.\n'; } else localerror = ''; return localerror; } function checkSelect(formname, selectboxid, displaytext) { var localerror = ''; if(eval('document.'+formname+'.'+selectboxid+'.selectedIndex')==0) { localerror = 'Please select your '+displaytext+'!\n'; } else localerror = ''; return localerror; } function getRadio(formname, radioname, displaytext) { for (var i=0; i < eval('document.'+formname+'.'+radioname+'.length'); i++) { if (eval('document.'+formname+'.'+radioname+'[i].checked')) { var rad_val = eval('document.'+formname+'.'+radioname+'[i].value'); return rad_val; } } } function checkRadio(formname, radioname, displaytext) { var localerror = ''; var rad_val = ''; for (var i=0; i < eval('document.'+formname+'.'+radioname+'.length'); i++) { //check every radio button by that name if (eval('document.'+formname+'.'+radioname+'[i].checked')) { //if it is checked rad_val += '-'; } else rad_val += ''; } if (rad_val=='') { localerror = 'Please select a '+displaytext+'!\n'; } return localerror; } function autoComplete (field, select, property) { /*onKeyUp="autoComplete(this,this.form.selectboxname,'value',false)" - add this to textbox where you are typing*/ var found = false; for (var i = 0; i < select.options.length; i++) { if (select.options[i][property].toUpperCase().indexOf(field.value.toUpperCase()) == 0) { found=true; break; } } if (found) { select.selectedIndex = i; } else { select.selectedIndex = -1; } if (field.createTextRange) { if (!found) { field.value=field.value.substring(0,field.value.length-1); return; } var cursorKeys ="8;46;37;38;39;40;33;34;35;36;45;"; if (cursorKeys.indexOf(event.keyCode+";") == -1) { var r1 = field.createTextRange(); var oldValue = r1.text; var newValue = found ? select.options[i][property] : oldValue; if (newValue != field.value) { field.value = newValue; var rNew = field.createTextRange(); rNew.moveStart('character', oldValue.length) ; rNew.select(); } } } } function Trim(s) { while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r')) { s = s.substring(1,s.length); } while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r')) { s = s.substring(0,s.length-1); } return s; } function isValid(string,allowed) { // var valid = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; // define valid characters for (var i=0; i< string.length; i++) { if (allowed.indexOf(string.charAt(i)) == -1) return false; } return true; }