setTimeout("start_blink();",40000) 

function start_blink() 
	{
	changeBgr('#FFFF00');
	setTimeout("changeBgr('#FFFFFF');",500) 
	setTimeout("changeBgr('#FFFF00');",1000) 
	setTimeout("changeBgr('#FFFFFF');",1500) 
	setTimeout("changeBgr('#FFFF00');",2000) 
	setTimeout("changeBgr('#FFFFFF');",2500) 
	}


function changeBgr(colour) { 

	search_box = document.getElementById("item_description")

	if ((search_box.value == "") || (search_box.value == "find items !!")) 	{
		search_box.style.backgroundColor = colour ; 
		search_box.value = "find items !!" ; 
	}

}