function tab(val, name, num){
	var b = name;
	var a = val;
	for (var i=1;i<num;i++){
		if(i==a){
			document.getElementById(b+'_'+i).style.display="block";
			document.getElementById(b+'_ImgL_'+i).style.backgroundImage="url('images/common/tabH_curve1.jpg')";
			document.getElementById(b+'_ImgR_'+i).style.backgroundImage="url('images/common/tabH_curve2.jpg')";
			document.getElementById(b+'_ImgH_'+i).style.backgroundImage="url('images/common/tabH_bg.jpg')";
			document.getElementById(b+'_ImgH_'+i).className="tabOn";
		}
		else{
			document.getElementById(b+'_'+i).style.display="none";
			document.getElementById(b+'_ImgL_'+i).style.backgroundImage="url('images/common/tab_bg.jpg')";
			document.getElementById(b+'_ImgR_'+i).style.backgroundImage="url('images/common/tab_bg.jpg')";
			document.getElementById(b+'_ImgH_'+i).style.backgroundImage="url('images/common/tab_bg.jpg')";
			document.getElementById(b+'_ImgH_'+i).className="tabOff";
		}
	}
}