check if field input have content

function editchnage() {

ChangeFlag = 1;

document.getElementById("textmodified").innerHTML = "תוכן המידע השתנה. יש לשמור לפני יציאה!";

}



function checktosave() {

  if (save_mt.duedate.value == "") {

    alert( "נא להכניס תאריך ישיבה" );

    save_mt.duedate.focus();

    return false ;

  }

  ChangeFlag = 0;

  document.getElementById("textmodified").innerHTML = "";

  document.save_mt.submit();

}





<form name="save_mt" method="POST" action="mtsh_save.php" target="_blank">



<textarea id="pp2" name="pp1" onchange="editchnage();">Text</textarea>





<input name="Submit1" type="submit" ACCESSKEY="s" onclick="return checktosave();" 

<? if ($status=="STATUS=closed") echo 'disabled="disabled"'; ?> value="שמור">



<div id="textmodified"> </div>

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Detect Hebrew characters in a given string and change the dir for PHP and JavaScript Go to last page PHP previous -1 Get current directory on the server file chnage modify on server Connect to MySQLi database Show files in directory include connect to db Responsive media Files list in directory JSON function return multi files upload to server save file as pdf using header page redirect in php from url location to disk real directory path unzip download to server or client remove all files in a directory recursively hebrew character set for mysql DNS get record Mail cc and bcc PHP $_REQUEST vs $_SESSION link external php file MySQL get last autoincrement ID Get the SSL certificate details using php How to handle JSON objects array in PHP Read JSON using JavaScript and PHP decoding json_decode to array or object Pass variables and data from PHP to JavaScript Write JavaScript process using php Create an Onclick event using php Read JSON object from database using JavaScript Reading MySQL table to perform JSON dynamic report in JavaScript PHP show JSON content php show url parameters An AJAX example with a call to a function when loaded Get Jerusalem time in PHP AJAX using post and form to transfer all characters to php page Get all selected values of a multiple Select Read JSON file using PHP and convert it to JavaScript JSON

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check if field input have content