// JavaScript Document
function get(id){
	var element=document.getElementById(id);
	return element;
}

function showHide(id){
	if(get(id).style.display=='block') {
		get(id).style.display='none';
	}
	else {
		get(id).style.display='block';
	}
}

  // getPageScroll() by quirksmode.com
  function getPageScroll() {
    var xScroll, yScroll;
    if (self.pageYOffset) {
      yScroll = self.pageYOffset;
      xScroll = self.pageXOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
      yScroll = document.documentElement.scrollTop;
      xScroll = document.documentElement.scrollLeft;
    } else if (document.body) {// all other Explorers
      yScroll = document.body.scrollTop;
      xScroll = document.body.scrollLeft;	
    }
    return new Array(xScroll,yScroll) 
  }


function savePageScroll($obj){
	var input  = document.createElement('input');
	input.name='scroll_y';
	input.type='hidden';
	input.value=getPageScroll()[1];
	
	$obj.appendChild(input);
}