var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");

function CheckUIElements(){

	var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;

	if(bExplorer4plus){ // IE ¿ë ¼³Á¤
		yLimit_b = parseInt(document.body.scrollHeight - 0, 10); // ¾Æ·¡ ÇÑ°èÁ¡
		yLimit_t = parseInt(document.body.scrollHeight + 0, 10); // ¾Æ·¡ ÇÑ°èÁ¡
		yMenuFrom = parseInt(document.getElementById('quick_slide').style.top, 10);
		yMenuTo   = document.body.scrollTop + 250;
	}





	timeoutNextCheck = 100;

	if( yMenuFrom != yMenuTo ){

		if(yMenuTo > yLimit_b){ yMenuTo = yLimit_b; }

		yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 30 );

		if( yMenuTo < yMenuFrom ){
			yOffset = -yOffset;
		}

		if( bExplorer4plus ){
			document.getElementById('quick_slide').style.top = parseInt (document.getElementById('quick_slide').style.top, 10) + yOffset;
		}

		timeoutNextCheck = 10;
	}

	setTimeout ("CheckUIElements()", timeoutNextCheck);

}

function slide(){
	var y;

	// Æä¿¡Áö ·Îµù½Ã Æ÷Áö¼Ç
	if( bExplorer4plus ){
		document.getElementById('quick_slide').style.top = document.body.scrollTop + 270;
		document.getElementById('quick_slide').style.visibility = "visible";
	}

	CheckUIElements();
	
	return true;
}