https://www.webmaster-forums.net/crss/node/1002421 en https://www.webmaster-forums.net/html-css-and-javascript/begginning-javascript-please-help-simple-script-wont-work-cant-figure-out-wh#comment-1010798 <p>It gave me an invalid argument error at line 44, which is:</p> <p>block.left = block.xpos</p> <p>It may be you need to use the parseInt() function right after you prompt for the coordinates and the number of moves to be sure they are integers. I'm not sure thatis it, but it may be worth a try. <img src="https://www.webmaster-forums.net/misc/smileys/smile.png" title="Smiling" alt="Smiling" class="smiley-content" /></p> <p>----------<br /> Page Resource: <a href="http://www.pageresource.com" class="bb-url">http://www.pageresource.com</a><br /> JavaScript City: <a href="http://www.javascriptcity.com" class="bb-url">http://www.javascriptcity.com</a></p> Tue, 31 Aug 1999 21:21:00 +0000 John Pollock comment 1010798 at https://www.webmaster-forums.net