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<?php
 
 class TextArea extends Form_Element
 {
 // description: Use with class_forms.php.
 //              Show a textarea with text from database you can change.
 // version:     1.2
 // history:     15-02-2002 Release version 1.0
 //              19-08-2002 Set counter.
 //              14-09-2002 No query, no text. JSCounterExpansion added.
 
 var $Connection;
 var $NrRows = 10;
 var $NrCols = 40;
 var $SQL_Update_Query;
 var $SQL_Show_Query;
 var $Type = "text";
 var    $Counter_Used = 0;
 var $Counter_Disabled = 1;
 var $CounterValue = 125;
 var $JSCounterExpansion = "";
 
 function TextArea($Name)
 {
 $this->Set_Element_Name($Name);
 }
 
 function Show_Counter_Function()
 {
 print"<script language='javascript'>\n";
 print"function TextCounter(field, countfield, maxlimit){\n";
 print"if (field.value.length > maxlimit)\n";
 print"field.value = field.value.substring(0, maxlimit);\n";
 print"else \n";
 print"countfield.value = maxlimit - field.value.length;\n";
 print $this->JSCounterExpansion;
 print"}\n";
 print"</script>\n";
 $this->Counter_Used = 1;
 }
 
 function Show_Textcolor_Function()
 {
 // still in test...
 print"<script language='javascript'>\n";
 print"function TextColor(){\n";
 print"document.c.taHoi.style.color = 'red';\n";
 print"}\n";
 print"</script>\n";
 $this->Counter_Used = 1;
 }
 
 function Show()
 {
 if ($this->Connection != 0)
 {
 // update record
 if (!empty($this->SQL_Update_Query))
 {
 odbc_exec($this->Connection,$this->SQL_Update_Query);
 }
 
 // rescent value from database
 if (!empty($this->SQL_Show_Query))
 {
 $result = odbc_exec($this->Connection,$this->SQL_Show_Query);
 if (odbc_fetch_row($result))
 {
 $Show_Value = odbc_result($result,1);
 }
 }
 else
 {
 $Show_Value = "";
 }
 }
 else
 {
 print "textarea zonder DB-aansturing hier<br>";
 }
 
 // show textarea
 print"<textarea type=text name='".$this->Element_Name."' rows=".$this->NrRows." cols=".$this->NrCols;
 
 // show counter
 if ($this->Counter_Used == 1) print" wrap=physical onKeyDown=\"TextCounter(this.form.".$this->Element_Name.",this.form.remLen,".$this->CounterValue.");\" onKeyUp=\"TextCounter(this.form.".$this->Element_Name.",this.form.remLen,".$this->CounterValue.");\"";
 print ">";
 print $Show_Value;
 print"</textarea>\n";
 }
 
 function Show_Counter($Size = 3)
 {
 if ($this->Counter_Disabled != 0) $Disabled = "DISABLED";
 else $Disabled = "";
 print"<input readonly ".$Disabled." type=text name=remLen size=".$Size." maxlength=".$Size." value=\"".$this->CounterValue."\">";
 }
 
 function Show_Textcolor_Button()
 {
 // still in test...
 print"<input type=button value='textcolor' onClick='TextColor()'>";
 }
 }
 
 ?>
 
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