function searchText(userName,n,swidth,instr) {
	if (n == 0 && userName.value == instr){
		userName.value="";
		userName.style.cssText = "color:#000;width:"+swidth+";";
	}
	if (n == 1){
		if(userName.value == instr){
			userName.value="";
		}
		userName.style.cssText = "color:#000;width:"+swidth+";";
	}
	if (n == 2 && userName.value == ""){
		userName.value =instr;
		userName.style.cssText = "color:#666666;width:"+swidth+";";
	}
}