plclist = new Array("honbu","miyako","yaeyama","hokkaido","tochigi","saitama","tokyo","kanagawa","nagano","gifu","aichi","shiga","kyoto","nara","osaka","hyogo","tokushima","kagawa","ehime","hiroshima","oita","saga","fukuoka","nagasaki","kumamoto","miyazaki","kagoshima","okinoerabu","los","jackson","hawaii","brazil","arge","peru","volivia","mexico");


function showchp(plc) {
	var bashonum;								
		for (i = 0; i < plclist.length; i++) {
												/*
												testnum = i;
												hideplc = plclist[testnum];
												document.all(hideplc).style.display = "block";
												
												alert(i);
												// testnum = i++;
												// alert(testnum);
												*/
			if (plc == plclist[i]) {
				bashonum = i;
			}
		}
	
	basho = plclist[bashonum];
	/*
	document.all(basho).style.display = "block";
	
		for (j = 0; j < plclist.length; j++) {
			hideplc = plclist[j];
			document.all(hideplc).style.display = "block";
		}
	*/
	
	if (document.all) {
		
		for (j = 0; j < plclist.length; j++) {
			hideplc = plclist[j];
			document.all(hideplc).style.display = "none";
		}
		
		document.all(basho).style.display = "block";
		
	} else if (document.getElementById) {
	
		for (i = 0; i < plclist.length; i++) {
			hideplc = plclist[i];
			document.getElementById(hideplc).style.display = "none";
		}
		document.getElementById(plc).style.display = "block";
		
	}
}