List Chooser - JavaScript Made Easy: Free JavaScripts Tutorials Example Code

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List Chooser

The user can immediately locate what he has been searching for in the long options list just by typing. With each character the user types in the text field, the available items listed are narrowed down (similar to a help file's index feature). Clever! (Start by entering an 'a' to narrow the list) Please enter the first few letters of the item you are looking for.


Insert into <HEAD>
<SCRIPT LANGUAGE="JavaScript"> <!-- Original: Anand Raman (anand_raman@poboxes.com) --> <!-- Web Site: http://www.angelfire.com/ar/diduknow --> <!-- Begin function SelObj(formname,selname,textname,str) { this.formname = formname; this.selname = selname; this.textname = textname; this.select_str = str \|\| ''; this.selectArr = new Array(); this.initialize = initialize; this.bldInitial = bldInitial; this.bldUpdate = bldUpdate; } function initialize() { if (this.select_str =='') { for(var i=0;i<document.forms[this.formname][this.selname].options.length;i++) { this.selectArr[i] = document.forms[this.formname][this.selname].options[i]; this.select_str += document.forms[this.formname][this.selname].options[i].value+":"+ document.forms[this.formname][this.selname].options[i].text+","; } } else { var tempArr = this.select_str.split(','); for(var i=0;i<tempArr.length;i++) { var prop = tempArr[i].split(':'); this.selectArr[i] = new Option(prop[1],prop[0]); } } return; } function bldInitial() { this.initialize(); for(var i=0;i<this.selectArr.length;i++) document.forms[this.formname][this.selname].options[i] = this.selectArr[i]; document.forms[this.formname][this.selname].options.length = this.selectArr.length; return; } function bldUpdate() { var str = document.forms[this.formname][this.textname].value.replace('^\\s*',''); if(str == '') {this.bldInitial();return;} this.initialize(); var j = 0; pattern1 = new RegExp("^"+str,"i"); for(var i=0;i<this.selectArr.length;i++) if(pattern1.test(this.selectArr[i].text)) document.forms[this.formname][this.selname].options[j++] = this.selectArr[i]; document.forms[this.formname][this.selname].options.length = j; if(j==1){ document.forms[this.formname][this.selname].options[0].selected = true; //document.forms[this.formname][this.textname].value = document.forms[this.formname][this.selname].options[0].text; } } function setUp() { obj1 = new SelObj('menuform','itemlist','entry'); // menuform is the name of the form you use // itemlist is the name of the select pulldown menu you use // entry is the name of text box you use for typing in obj1.bldInitial(); } // End --> </script>

Insert into <BODY>
<BODY OnLoad="javascript:setUp()"> <center> <form name="menuform" onSubmit="javascript:window.location = document.menuform.itemlist.options[document.menuform.itemlist.selectedIndex].value;return false;"> <font face="arial, helvetica" size="-1">Please enter the first few letters of the item you are looking for.</font> <br><br> <input type="text" name="entry" size="30" onKeyUp="javascript:obj1.bldUpdate();"> <br> <select name="itemlist" size=5> <option value="page.html">ALL <option value="page.html">ALL CATALOG <option value="page.html">ALL CLUSTERS <option value="page.html">ALL CLUSTERS HASH EXPRESSIONS <option value="page.html">ALL COL COMMENTS <option value="page.html">ALL COL PRIVS <option value="page.html">ALL COL PRIVS MADE <option value="page.html">ALL COL PRIVS SENT <option value="page.html">ALL CONSTRAINTS <option value="page.html">ALL CONS COLUMNS <option value="page.html">ALL DB LINKS <option value="page.html">ALL DEF AUDIT <option value="page.html">ALL DEPENDENCIES <option value="page.html">ALL ERRORS <option value="page.html">ALL HISTOGRAMS <option value="page.html">ALL INDEXES <option value="page.html">ALL IND COLUMNS <option value="page.html">ALL JOBS <option value="page.html">ALL OBJECTS <option value="page.html">ALL REFRESH <option value="page.html">ALL REFRESH NOW <option value="page.html">ALL USERS <option value="page.html">ALL VIEWS <option value="page.html">AUDIT ACTIONS <option value="page.html">BOOKS <option value="page.html">CLIENTS <option value="page.html">CLOSED <option value="page.html">COLUMN PRIVILEGES <option value="page.html">DBA ANALYZE COST <option value="page.html">DBA FROM CLIENTS <option value="page.html">DBA FROM NEIGHBORS <option value="page.html">DBA PROFILES <option value="page.html">DBA REFRESH ALL <option value="page.html">DBA REFRESH PAGE <option value="page.html">DBA REPORT <option value="page.html">DBA RGROUP <option value="page.html">DBA ROLE <option value="page.html">DBA ROLE SUMMARY <option value="page.html">DBA ROLLBACK SEGS </select> </form> </center>

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