function clear_text($id){
			if($id=="reference_input" && comparer_string(document.getElementById($id).value, "mum\u00E9ro r\u00E9f\u00E9rence"))
				document.getElementById($id).value = "";
			else if($id=="keyword_input" && comparer_string(document.getElementById($id).value, "mot cl\u00E9"))
				document.getElementById($id).value = "";
		}
		
		function verif_text($id){
			if(document.getElementById($id).value.length==0){
				if($id=="reference_input")
					document.getElementById('search_reference_span').innerHTML = "<input type='text' value='mum&eacute;ro r&eacute;f&eacute;rence' name='reference_input' id='reference_input' onmouseover='clear_text(this.id)' onmouseout='verif_text(this.id) '>";
				else
					document.getElementById('search_key_word_span').innerHTML = "<input type='text' value='mot cl&eacute;' name='keyword_input' id='keyword_input' onmouseover='clear_text(this.id)' onmouseout='verif_text(this.id)' />";
			}
		}
		
		function isNumber(obj){
			 strRef = "1234567890";
			 if(obj.length==0)
				return false;
				
			for (i=0; i<obj.length;i++) {
				tempChar= obj.charAt(i);
				if (strRef.indexOf(tempChar)==-1) {
					return false; 
				}
			}
			return true;
		}
		
		function reLocation($id){
			if($id == "search_reference"){
				if(comparer_string(document.getElementById('reference_input').value,  "mum\u00E9ro r\u00E9f\u00E9rence")){
					document.getElementById('info_search_error').setAttribute('style', 'Color:white;background-color:red ');
					document.getElementById('info_search_error').innerHTML="Vous devez choisir une r&eacute;f&eacute;rence!"						
					return false;
				}
				else if(!isNumber(document.getElementById('reference_input').value)){
					document.getElementById('info_search_error').setAttribute('style', 'Color:white;background-color:red ');
					document.getElementById('info_search_error').innerHTML="num&eacute;ro r&eacute;f&eacute;rence!";
					return false;
				}
			}
			else{
				if(  comparer_string(document.getElementById('keyword_input').value, "mot cl\u00E9")
				   && document.getElementById('search_categorie').value == '0')
				{	
					document.getElementById('info_search_error').setAttribute('style', 'Color:white; float:right; background-color:red ');
					document.getElementById('info_search_error').innerHTML="Vous devez choisir au moins un champ!<br/><br/>";
					return false;
				}
			}
			location('./index.php')
		}