function placehoder() 
		  {
				
				if(document.searchform.keys.value=='' || document.searchform.keys.value=='ÇëÊäÈë¹Ø¼ü×Ö'){
					alert("ÇëÊäÈëËÑË÷¹Ø¼ü´Ê£¡");
					document.searchform.keys.focus();
					return false;
				} 
				
				
				
				
				var keyword=document.searchform.keys.value;
				if(document.searchform.search[0].checked==true){
					document.searchform.action="http://search.food36.com/tradesearch.php?keys="+keyword;
				}else if(document.searchform.search[2].checked==true){
					document.searchform.action="http://search.food36.com/productsearch.php?keys="+keyword;
				}else if(document.searchform.search[1].checked==true){
					document.searchform.action="http://search.food36.com/companysearch.php?keys="+keyword;
				}else if(document.searchform.search[6].checked==true){
					document.searchform.action="http://search.food36.com/newssearch.php?keys="+keyword;
				}else if(document.searchform.search[4].checked==true){
					document.searchform.action="http://search.food36.com/equipmentsearch.php?keys="+keyword;
				}else if(document.searchform.search[5].checked==true){
					document.searchform.action="http://search.food36.com/packsearch.php?keys="+keyword;
				}else if(document.searchform.search[3].checked==true){
					document.searchform.action="http://search.food36.com/additivesearch.php?keys="+keyword;
				}
				return true;
		  }