/**************************  Trim() ************************* 
* 					*
* 					*
* 					*
*************************************************************/
function Trim(string) 
{
// Removes leading, trailing, and redundant spaces from string 
	var re = /^ */g
	string = string.replace(re, "")
	re = / *$/g
	string = string.replace(re, "")
	re = / {2,}/g
	string = string.replace(re, " ")
	return string
}

function validateDocument(this_form)
{ 
	var validation = validateFields(this_form);
	if ( validation != -1 )
	{
		alert(this_form.txtError.value)
	}else
	{
		this_form.submit();
	}
}

function validateFields(this_form)
{
	var validated = -1;
	if (this_form.FeedbackRequired.value == ""){return -1;}
	var validate_fields = this_form.FeedbackRequired.value.split("; ");
	for (i = 0 ; i < validate_fields.length ; i++)
	{
		if ( validate_fields[i] != "" )
		{
			var active_field = eval( "this_form['" + validate_fields[i] + "']" ) ;
			switch(active_field.type)
			{
				case "text" :
					if ( Trim(active_field.value) == "" )
					{					
						validated = i;
						return validated;
					}
					break
				case "file" :
					if ( Trim(active_field.value) == "" )
					{					
						validated = i;
						return validated;
					}
					break					
				case "hidden" :
					if ( Trim(active_field.value) == "" )
					{					
						validated = i;
						return validated;
					}
					break
				case "textarea" :
					if ( Trim(active_field.value) == "" )
					{					
						validated = i;
						return validated;
					}
					break
				case "select-one" :				
					if ( active_field.options[active_field.selectedIndex].text == 'Select value' )
					{					
						validated = i;
						return validated;
					}
					break
				case "select-multiple" :				
					if ( active_field.selectedIndex == -1)
					{					
						validated = i;
						return validated;
					}	
					break
				default:					
					if (active_field.length != null)
					{
						if (active_field[0].type == "radio" || active_field[0].type == "checkbox") 
						{					
							chk = 'false';
							for (m = 0; m < active_field.length; m++)
							{
								if (active_field[m].checked)
								{
									chk = 'true'
									break
								}
							}
							if (chk == 'false')
							{	
								validated = i;					
								return validated;
							}					
						} 
					}else
					{
						if (active_field.type == "radio" || active_field.type == "checkbox") 
						{
							chk = 'false';
							if (active_field.checked)
							{
									chk = 'true'
									break
							}
							
							if (chk == 'false')
							{	
								validated = i;					
								return validated;
							}					
						}	
					}
			}	
		}
	}
	return validated;
}