Check for update before submitting

[evergreean43]

I am trying to check my text and textarea fields on my update form to make sure a field value was changed before going to action page. If none were changed and someone hits submit button it should pop up message saying: You did not update any information for this form submit.

Please advise because my below attempt not working where it pops up the message everytime I submit. I assume my problem is in the myField.type conditions but not sure:

function chkUpdate(myedit)
{
var myField, myValue, i, j; 


i = 0
while (myField = myedit.elements[i++]) 
{
		
   if((myField.type == 'text') || (myField.type == 'textarea'))
    {
       if (myField.value != myField.defaultValue) 
       {
          return theChange(myedit);
       }
       break;
     }
}
alert("You did not update any information for this form submit.");
return false;
}

function theChange(myedit) 
{
	//info was edited, go to action page
	return true;
}

 

[cLFlaVA]

interesting. is that REALLY your theChange function? try something like this:

function chkUpdate(myedit) {
    var e = myedit.elements;
    for ( var i = 0; i < e.length; i++ ) {
        if ( e[i].type == 'text') || e[i].type == 'textarea') {
            if ( e[i].value != e[i].defaultValue ) {
                return true;
            }
        }
    }
    alert("You did not update any information for this form submit.");
    return false;
}

this is assuming you're calling the function from the form's onsubmit event.



*cLFlaVA
----------------------------
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[URL unfurl="true"]http://www.coryarthus.com/[/url]

 

[evergreean43]

Thanks it works great for IE and most of the time in Netscape 7.

If my Netscape 7 textarea has multiple line values it doesnt validate. Is this because of an issue with Netscape 7 textarea element defaultValue? Is there a way to fix that in Netscape 7 where I assume it has something to do with newline character??