function prWrite() {
ord=Math.random()*10000000000000000;
document.write('<iframe src="http://ad.jp.doubleclick.net/adi/top.scn.headertext/;sz=330x16;ord=' + ord + '?" width="330" height="16" marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no">');
document.write('</iframe>');
 }
 

 
 function prWriteS() {
ord=Math.random()*10000000000000000;
document.write('<iframe src="https://ad.jp.doubleclick.net/adi/top.scn.headertext/;sz=330x16;ord=' + ord + '?" width="330" height="16" marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no">');
document.write('</iframe>');
 }