function writeJS(obj){
     var str='';
     str+='<iframe src='+obj+' frameborder="0" scrolling="yes" class="frame"></iframe>';
     document.write(str);
}

function BlankWin (url) {
     blankWin = window.open(url,'_blank');
}

function menuup(){
 	document.nav.src='images/nav.jpg'
}

function menuover(){
 	document.nav.src='images/nav-over.jpg'
}
function writeVideo(obj){
     var str='';
     str+='<iframe src='+obj+' frameborder="0" scrolling="no" class="framevideo"></iframe>';
     document.write(str);
}
function writePRE(obj){
     var str='';
     str+='<iframe src='+obj+' frameborder="0" scrolling="yes" class="frame_preowned"></iframe>';
     document.write(str);
}