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JavaScript Basics

Inserting Javascript

Complete Tutorial

Advance DHTML Tutorial

Check Sorter

JavaScript can sort data based on any field of information. In this example, a checkbook register can be sorted by date, check number, check amount, or paid to person. We're one step closer to online banking... ;-)

Insert into <HEAD>

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
function dates(datea,dateb){  
var yeara = 1 * datea.substring(6,8);
var yearb = 1 * dateb.substring(6,8);
if (yeara > yearb) return true;
if (yeara < yearb) return false;

var montha = 1 * datea.substring(0,2);
var monthb = 1 * dateb.substring(0,2);
if (montha > monthb) return true;
if (montha < monthb) return false;

var daya = 1 * datea.substring(3,5);
var dayb = 1 * dateb.substring(3,5);
if (daya > dayb) return true;
return false;
}

function exchange(i,form){     
/* This function swaps the information in the various cells */
document.forms[6].check.value = document.forms[i].check.value;
document.forms[i].check.value = document.forms[i+1].check.value;
document.forms[i+1].check.value = document.forms[6].check.value;
document.forms[6].units.value = document.forms[i].units.value;
document.forms[i].units.value = document.forms[i+1].units.value;
document.forms[i+1].units.value = document.forms[6].units.value;  
document.forms[6].amount.value = document.forms[i].amount.value;
document.forms[i].amount.value = document.forms[i+1].amount.value;
document.forms[i+1].amount.value = document.forms[6].amount.value; 
document.forms[6].presented.value = document.forms[i].presented.value;
document.forms[i].presented.value = document.forms[i+1].presented.value;
document.forms[i+1].presented.value = document.forms[6].presented.value; 
}

function amountSort(form){
/* orders the table by amount */   
for (var j = 0; j<5; j++){
for(var i=0; i<5; i++){
var l = 1 * i + 1;
if(1 * document.forms[i].amount.value > 1 * document.forms[i+1].amount.value) {   
exchange(i,form);
         }
      }
   }
}

function checkSort(form){
/* orders the table by check number */
for (var j = 0; j<5; j++){
for(var i=0; i<5; i++){
var l = 1 * i + 1;
if(1 * document.forms[i].check.value > 1 * document.forms[i+1].check.value){   
exchange(i,form);  
         }
      }
   }
}

function dateSort(form){
/* orders the table by date */
for (var j = 0; j<5; j++){
for(var i=0; i<5; i++){
var l = 1 * i + 1;
if(dates(document.forms[i].units.value,document.forms[i+1].units.value)){
exchange(i,form);  
         }
      }
   }
}

function presentSort(form){   
/* orders the table by presenter */
for (var j = 0; j<5; j++){    
for(var i=0; i<5; i++){
var l = 1 * i + 1;
if(document.forms[i].presented.value >document.forms[i+1].presented.value){    
exchange(i,form);   
         }
      }
   }
}

// End -->
</SCRIPT>
</HEAD>

Insert into <BODY>

<center>
<table border=4>

<form method=post>
<tr>
<td><div align=center> <input type="button" value="DATE" onclick=dateSort(this.form)> </div></td>
<td><div align=center> <input type="button" value="CK #" onClick=checkSort(this.form)> </div></td>
<td><div align=center> <input type="button" value="AMOUNT" onClick=amountSort(this.form)> </div></td>
<td><div align=center> <input type="button" value="PAID TO" onClick=presentSort(this.form)> </div></td>
</tr>
<tr>
<td><input type=text name=units size=8 value=12/07/95></td>
<td><input type=text name=check size=6 value=3></td>
<td><input type=text name=amount size=9 value=99.10></td>
<td><input type=text name=presented size=20 value="Sears"></td>
</tr>
</form>

<form method=post>
<tr>
<td><input type=text name=units size=8 value=11/05/95></td>
<td><input type=text name=check size=6 value=7></td>
<td><input type=text name=amount size=9 value=12.01></td>
<td><input type=text name=presented size=20 value="Holiday Inn"></td>
</tr>
</form>

<form method=post>
<tr>
<td><input type=text name=units size=8 value=11/03/95></td>
<td><input type=text name=check size=6 value=1></td>
<td><input type=text name=amount size=9 value=1.08></td>
<td><input type=text name=presented size=20 value="McDonalds"></td>
</tr>
</form>

<form method=post>
<tr>
<td><input type=text name=units size=8 value=12/01/94></td>
<td><input type=text name=check size=6 value=33></td>
<td><input type=text name=amount size=9 value=22.05></td>
<td><input type=text name=presented size=20 value="IBM"></td>
</tr>
</form>

<form method=post>
<tr>
<td><input type=text name=units size=8 value=12/23/95></td>
<td><input type=text name=check size=6 value=22></td>
<td><input type=text name=amount size=9 value=11.95></td>
<td><input type=text name=presented size=20 value="American Airlines"></td>
</tr>
</form>

<form method=post>
<tr>
<td><input type=text name=units size=8 value=12/26/95> </td>
<td><input type=text name=check size=6 value=11></td>
<td><input type=text name=amount size=9 value=22.65></td>
<td><input type=text name=presented size=20 value="Disney Land"></td>
</tr>
</form>

</table>
</center>

<form method=post>
<tr>
<td><input type=hidden name=units size=5></td>
<td><input type=hidden name=check size=6></td>
<td><input type=hidden name=amount size=5></td>
<td><input type=hidden name=presented size=20></td>
<tr>
</form>

Other Options