[Resolved] Java anyone?

[jopie916]

This little problem is nested in a php function (that means it still counts on this forum, right? 😃 )

The question actually has do do with a java input box here's the code in question:

print("      <td valign=\"center\" bgcolor=\"#$CellColor\" align=\"left\"><div class=\"BlackSmall\" align=\"left\"><input\n");
print("       type=\"hidden\" value=\"$Item^$ItemDescription^$ItemPrice\" name=\"item_$Item\"><input\n");
print("       id=\"FormsEditField$Item\" class=\"BlackSmall\" maxLength=\"3\" size=\"2\" value=\"0\" name=\"op1_$Item\" onfocus=\"value=''\"> $ItemUnit<font color=\"#ff0000\">*</font><br></div>\n");
print("      </td>\n");

Basicly it creates three cells in a table based on data returned in a mysql query. Here's what it looks like processed (hand-formatted to look pretty):

<td valign="center" bgcolor="#ffffff" align="center"><div
   class="BlackSmallBold" align="center">350020ERL<br></div>
</td>
<td valign="center" bgcolor="#ffffff" align="center"><div
   class="BlackSmallBold" align="center">$25.60<br></div>
</td>
<td valign="center" bgcolor="#ffffff" align="left"><div
   class="BlackSmall" align="left"><input
   type="hidden"
   value="350020ERL^-20 Pro-Lite 350 Hose Bulk^25.60"
   name="item_350020ERL"><input
   id="FormsEditField350020ERL" class="BlackSmall"
   maxLength="3" size="2" value="0" name="op1_350020ERL"
   onfocus="value=''"> ft.<br></div>
</td>

Now, I know this is a little thing but when someone clicks on the input box, the box defaults to blank (by design).
Problem is when the box looses focus it stays blank if nothing is entered.
Anyone know a way to detect if a value is entered, and if not enter a "0" when the box looses focus?

maybe adding something like this to the input tag?
onlostfocus="if value='' then value='0' "

[sarahk]

gosh, trying to remember my javascript...

you could have an onchange event or onblur

check out this awesome site for a guide to javascript methods etc

http://www.devguru.com/Technologies/ecmascript/quickref/javascript_index.html

[laserlight]

perhaps you could try something like:

function checkValue(val) {
	if (this.value == this.defaultValue) {
		this.value = '';
	}
	elseif (this.value == '') {
		this.value = this.defaultValue;
	}
}

<input type="text" name="somename" onfocus="checkValue(this);" onblur="checkValue(this);">

Incidentally, this would be javascript, not java.

[jopie916]

Thanks sarahk and laserlight, it was really a combination of your help that helped me solve the problem.

Here's my working solution: (without php formatting)

function fcnCheckValue(boxval)
	{ 
	if (boxval == "")
	  return "0";
	else
	  return boxval;
	} 

<input type="text" name="somename" value="0" onfocus="this.select();" onblur="value = fcnCheckValue(this.value);">

- When the user clicks on the input box, the contents are selected automatically. (I like this better than my original plan)
- When the box looses focus, the function changes the value to "0" if left blank.