function check()
	{
		
		var test=true;
		var message='';
		
		
		if (isEmpty(document.form2submit.email_proprio.value))
		{
			message+='\nYou forgot your Email !';
			test=false;
		} else if (isNotEmailAdress(document.form2submit.email_proprio.value))
		{
			message+='\nYour email seems to be not a valid email, please check it again !';
			test=false;
		}
		if (isEmpty(document.form2submit.nom_proprio.value))// && isNotIpAdress(document.form2.nom.value))
		{
			message+='\nYou forgot your Name !';
			test=false;
		}
		if (isEmpty(document.form2submit.titre.value))
		{
			message+='\nYou forgot the Title !';
			test=false;
		}
		if (isEmpty(document.form2submit.url.value) || isNotUrl(document.form2submit.url.value))
		{
			message+='\nThis URL is not valid, please check it again or read our conditions !';
			test=false;
		}
		if (isEmpty(document.form2submit.description.value))// && isNotAlphabetic(document.form.msg.value))
		{
			message+='\nYou forgot the Description !';
			test=false;
		}
		
		
//verifie si on a bien selectionne une categorie dans la liste deroulante

		if (document.form2submit.id_cat.value == 0)
		{
		message+='\nPlease choose a category !';
		test=false;
		}
	
		
			
		
		if (message!='') alert(message);
		return test; 
	}