var tabImgName = new Array("tab_01","tab_02","tab_03","tab_04");
var flag = 0;

function tabImgChange(num,tabID){
	if(flag == 0){
		if(document.getElementById(tabID).src.indexOf("over") == -1){
			document.getElementById(tabID).src = "/report/eventreport/athlete_message/images/" + tabImgName[num] + "_over.jpg";
			flag = 1;
		}
		else{
			document.getElementById(tabID).src = "/report/eventreport/athlete_message/images/" + tabImgName[num] + ".jpg";
		}
	}
	else if(flag == 1){
		if(document.getElementById(tabID).src.indexOf("over") == -1){
			document.getElementById(tabID).src = "/report/eventreport/athlete_message/images/" + tabImgName[num] + "_over.jpg";	
		}
		else{
			document.getElementById(tabID).src = "/report/eventreport/athlete_message/images/" + tabImgName[num] + ".jpg";
			flag = 0;
		}
	}
}