function Main_Tab(tb_name){
	//	tab_img_out(ÅǹöÆ° ¾Æ¿ô À̹ÌÁö), tab_img_over(ÅǹöÆ° ¿À¹ö À̹ÌÁö), img_name(ÅǹöÆ° À̸§), tb_list(Å×ÀÌºí ¾ÆÀ̵ð)
	var tab_img_out = new Array("/images/newmain/m1_btn.gif","/images/newmain/m2_btn.gif","/images/newmain/m3_btn.gif","/images/newmain/m4_btn.gif");
	var tab_img_over = new Array("/images/newmain/m1_btn_over.gif","/images/newmain/m2_btn_over.gif","/images/newmain/m3_btn_over.gif","/images/newmain/m4_btn_over.gif");
	var img_name = new Array("image4","image1","image2","image3");
	var tb_list = new Array("tab_1","tab_2","tab_3","tab_4");
	var more_list = new Array("more_1","more_2","more_3","more_4");

	var i="";

	for(i=0; i<img_name.length; i++){
		if(tb_name==tb_list[i]){
			eval(tb_list[i]+".style.display='block'");
			eval("document.all."+img_name[i]+".src='"+tab_img_over[i]+"'");
			//eval(more_list[i]+".style.display='block'");
		}else{
			eval(tb_list[i]+".style.display='none'");
			eval("document.all."+img_name[i]+".src='"+tab_img_out[i]+"'");
			//eval(more_list[i]+".style.display='none'");
		}
	}
}