var yourURL = "asthmatique.fr";

function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}

function restoreDefault(el) {
  if (el.value=="") el.value = "Chercher..."
}


function getURLParam(strParamName){
var strReturn = "";
var strHref = window.location.href;
if ( strHref.indexOf("?") > -1 ){
var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
var aQueryString = strQueryString.split("&");
for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
if ( 
aQueryString[iParam].indexOf(strParamName.toLowerCase() + "=") > -1 ){
var aParam = aQueryString[iParam].split("=");
strReturn = aParam[1];
break;
}
}
}
return unescape(strReturn);
} 



function outLinks() {
var outLink;
if (document.getElementsByTagName('a')) {
for (var i = 0; (outLink = document.getElementsByTagName('a')[i]); i++) {
if (outLink.href.indexOf(yourURL) == -1) {
outLink.setAttribute('target', '_blank');
}
}
}
}

window.onload = function() {
outLinks();

}