function checkRequieredFields(identifiant){
			var error = false; 					// set error to false (no error at this time)
			
			$("#"+identifiant).find('.require').each(function(){ // find all .require fields
				var id = $(this).attr('id'); 		// grab id="" of item
				
				/*   check if email is correctly formated    */
				/* ----------------------------------------- */
				
				var emailInID = new RegExp("(email)",'gi'); // ereg for email 
				var numericInID = new RegExp("(numeric)",'gi'); // eret for numeric

				if(id.match(emailInID)){ // if email is found on field's id
				
					//  ereg filter for email
					var filter = /^[a-z0-9]+([_|\.|-]{1}[a-z0-9]+)*@[a-z0-9]+([_|\.|-]{1}[a-z0-9]+)*[\.]{1}[a-z]{2,6}$/;
					// if email is not formated correctly
					if (!filter.test($('#'+id).val())){
						error = true;// now there is an error
						$('#'+id+', label[for="'+id+'"]').addClass('error'); 	// add .error class to input and linked label
					}else{ // no more error 
						$('#'+id+', label[for="'+id+'"]').removeClass('error');// remove error class
					}	
				} //## end email test
				
				// check box test
				else if($(this).attr('type').toLowerCase()==="checkbox"){ // if input is a checkbox
					var name = $(this).attr('name');  // grab the name
					var checkBoxError=true; // no checkbox checked (error is true)
					$('input[name="'+name+'"]').each(function(){ // loop on each checkbox with the same name
						if($(this).attr('checked')===true){ // if one of check box is checked
							checkBoxError = false; // ok no more error
						} // ## end if one of checkbox is  checked
					});//## end loop each
					
				
					if(checkBoxError){
						$('input[name="'+name+'"]').each(function(){// loop on each checkbox with the same name
							var id=$(this).attr('id'); // grab id
							$('#'+id).parent().addClass("error");
							error = true;
						});//# end loop
					}else{
						$('input[name="'+name+'"]').each(function(){ // loop on each checkbox
							var id=$(this).attr('id'); // grab id
							$('#'+id).parent().removeClass('error');
						});
					}//#end if(checkBoxError)
					
				}//#end Check box text
				
				
				// radio test
				else if($(this).attr('type').toLowerCase()==="radio"){ //if input is a radiobutton
					var name = $(this).attr('name');  // grab the name
					var radioError=true; // no radio checked (error is true)
					$('input[name="'+name+'"]').each(function(){ // loop on each radio with the same name
						if($(this).attr('checked')===true){ // if one of radio button is checked (not really necessary)
							radioError = false; // ok no more error
						}// ## end if one of radio button is checked
					}); // ## end of loop on each radio
					
					if(radioError){
						$('input[name="'+name+'"]').each(function(){ // add error
							var id=$(this).attr('id');
							$('#'+id).parent().addClass("error");
							error = true;
						});
					}else{ // remove error
						$('input[name="'+name+'"]').each(function(){
							var id=$(this).attr('id');
							$('#'+id).parent().removeClass('error');
						});
					}
				}// #end radio test
				
				
			
				// Select test (doesn't work width multiple input) http://www.ryancramer.com/journal/entries/select_multiple/
				// check if the first is selected (generally "please choose")
				else if($(this).is('select')){ // if require is an select tag 
						var id=$(this).attr('id'); // grab the id
						if($(this).find("option:first").attr('selected')){ // find first item (if selected) add error
							$('#'+id+', label[for="'+id+'"],#'+id+' option:first').addClass('error');
							error = true;
						}else{	// else remove error 
							$('#'+id+', label[for="'+id+'"],#'+id+' option:first').removeClass('error');
						}
						
				}
					
				
				
				
				
				
				/* test numeric value */
				/* -----------------  */
				else if(id.match(numericInID)){ // if numeric value is found on the id
				
				   if(isNaN($('#'+id).val()) || $.trim($('#'+id).val())===''){ // check if is not a number and if empty
					   error = true; // set error
					   $('#'+id+', label[for="'+id+'"]').addClass('error'); 	// add error class
				   }else{ // else no error
						$('#'+id+', label[for="'+id+'"]').removeClass('error');// remove error class
				   }	
				   
				} //## end numeric test
				
				/* test if fields are not empty */
				/* ---------------------------- */
				else if($.trim($('#'+id).val())==='' ){ //for other field (not checkbox,radio, select) check if empty
					error = true; // set error
					$('#'+id+', label[for="'+id+'"]').addClass('error'); 	// add class
				}else{ // else no error
					$('#'+id+', label[for="'+id+'"]').removeClass('error');// remove class
				}	
				
				$('input#'+id+',textarea#'+id).val($.trim($('#'+id).val())); // remove space before and after the value (only on input & textarea)
			});

			if(error){ // if error 
				return false; // don't send form
			}else{ // else
				return true; // ok send form
			}
		};