function openWindow(URLStr,width,height)
{
  popUpWin = open(URLStr, '', 'scrollbars=yes,width='+width+',height='+height);
}


String.prototype.trim= function()  
{  
    // 用正则表达式将前后空格  
    // 用空字符串替代。  
    return this.replace(/(^\s*)|(\s*$)/g, "");  
}

function isArray(object){   
  if(object.constructor == window.Array){
	  return true;
  }
  else{
	  return false;
  }
}

function createSelect(arealist)
{
        var selectarea = document.createElement("<select name=\"selectarea\" onchange=\"nextarea()\">");
		var showarea = document.getElementById("searchcontent");
		if(!isArray(arealist))	return;
		if(arealist.length != 2) return;
		if(!isArray(arealist[0]) || !isArray(arealist[1]) || (arealist[0].length != arealist[1].length))	return;
		var l = arealist[0].length;
        for(var i=0;i<l;i++)
        {
               selectarea.options[i] = new Option(arealist[1][i], arealist[0][i]);
        }
        showarea.appendChild(selectarea);
}