function clear_input(name) {
	name.value='';
}

function resizePage(){
   if (document.getElementById) {
   		var top; var bot;
      top=document.getElementById("maintop");
      bot=document.getElementById("mainbott");
      top.style.width='100%';
      bot.style.width='100%';
      if (top.offsetWidth>1100) top.style.width='1100px';
      if (top.offsetWidth<980) {
      	top.style.width='980px';
      	bot.style.width='980px';
      }
   }
}
window.onload=resizePage;
window.onresize=resizePage;