var fDesc=new Array(); fDesc[0] = "Scratch is a free, downloadable application that lets users combine graphics, photos, music, and sound to create simple interactive animations, games, and slide shows. Users create scripts by dragging and dropping graphical blocks that snap together like puzzle pieces. They can then post their creations on the Scratch site, where others can view and download them. This MIT effort is named after scratching, the technique hip-hop DJs use to create music by combining turntable manipulation with prerecorded clips and synthesizers."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }