myOP = window.opera;            // OP
myN6 = document.getElementById; // N6
myIE = document.all;            // IE
myN4 = document.layers;         // N4
if      (myOP) myBR="O6";
else if (myIE) myBR="I4";
else if (myN6) myBR="N6";
else if (myN4) myBR="N4";
else           myBR="";

myColTbl = new Array("#FF0000","#3133DE");
myColCnt = 0;

function myFunc(){
 if (myColCnt == 2) myColCnt = 0;
 else myColCnt++;

 if (myBR == "I4"){
   document.all("myIDstr").style.color = myColTbl[myColCnt];
 }else if (myBR == "N4") {
   document.myIDstr.document.open();
   document.myIDstr.document.fgColor=myColTbl[myColCnt];
   document.write("ボランティア会員に登録<br>して下さい");
   document.myIDstr.document.close();
 }else if (myBR == "N6" || myBR == "O6") {
   document.getElementById("myIDstr").style.color = myColTbl[myColCnt];
 }
 setTimeout("myFunc()",200);
}