function switch1(div) {
var option=['webdevelopment_banner','seoplus_banner','onlinemarketing_banner','hostingemail_banner','strategyadvice_banner','diggypartner_banner','njquery_banner'];
for(var i=0; i<option.length; i++) {
if (document.getElementById(option[i])) {
obj=document.getElementById(option[i]);
obj.style.display=(option[i]==div)? "block" : "none";
//alert(option[i]);
}
}
}

window.onload=function () {switch1('njquery_banner');}