var currentDropDown;
var speed;
currentDropDown = '';
speed = 300;

// Adobe functions
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { 
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

$(document).ready(function () {	

	$('#nav1').hover(
		function() {
			if (currentDropDown != "") {
				MM_swapImgRestore();
				$(currentDropDown).slideUp(speed);
				currentDropDown = "";
			}
			MM_swapImage('nav1','','http://www.ihop.com/externalassets6/nav1_on.png',1);
		},
		function() {
			MM_swapImgRestore();
			currentDropDown = "";
		}
	);

	$('#nav2').hover(
		function() {
			if (currentDropDown != "") {
				MM_swapImgRestore();			
				$(currentDropDown).slideUp(speed);
				currentDropDown = "";
			}
			MM_swapImage('nav2','','http://www.ihop.com/externalassets6/nav2_on.png',1);
		},
		function() {
			MM_swapImgRestore();			
			currentDropDown = "";
		}
	);

	$('#nav3').hover(
		function() {
			MM_swapImgRestore();			
			if (currentDropDown != "") {
				$(currentDropDown).slideUp(speed);
				currentDropDown = "";
			}
			MM_swapImage('nav3','','http://www.ihop.com/externalassets6/nav3_on.png',1);
			nav = "#nav3";			
		},
		function() {
			MM_swapImgRestore();
			currentDropDown = "";
		}
	);

	$('#nav4').hover(
		function() {
			if (currentDropDown != "#drop4") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
			}		
			MM_swapImage('nav4','','http://www.ihop.com/externalassets6/nav4_on.png',1);			
			currentDropDown = '#drop4';
  			$('#drop4').slideDown(speed);
		},
		function() {
			if (currentDropDown != "#drop4") {
				MM_swapImgRestore();	
				$(currentDropDown).slideUp(speed);
				currentDropDown = '';
			}
		}
	);

	$('#nav5').hover(
		function() {
			if (currentDropDown != "#drop5") {
				MM_swapImgRestore();
				$(currentDropDown).slideUp(speed);
			}	
			MM_swapImage('nav5','','http://www.ihop.com/externalassets6/nav5_on.png',1);						
			currentDropDown = '#drop5';
  			$('#drop5').slideDown(speed);
		},
		function() {
			if (currentDropDown != "#drop5") {
				MM_swapImgRestore();
				$(currentDropDown).slideUp(speed);
				currentDropDown = '';
			}
		}
	);

	$('#nav6').hover(
		function() {
			if (currentDropDown != "#drop6") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
			}		
			MM_swapImage('nav6','','http://www.ihop.com/externalassets6/nav6_on.png',1);				
			currentDropDown = '#drop6';
  			$('#drop6').slideDown(speed);
		},
		function() {
			if (currentDropDown != "#drop6") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
				currentDropDown = '';
			}
		}
	);

	$('#nav7').hover(
		function() {
			if (currentDropDown != "#drop7") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
			}		
			MM_swapImage('nav7','','http://www.ihop.com/externalassets6/nav7_on.png',1);				
			currentDropDown = '#drop7';
  			$('#drop7').slideDown(speed);
		},
		function() {
			if (currentDropDown != "#drop7") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
				currentDropDown = '';
			}
		}
	);

	$('#nav8').hover(
		function() {
			if (currentDropDown != "#drop8") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
			}		
			MM_swapImage('nav8','','http://www.ihop.com/externalassets6/nav8_on.png',1);					
			currentDropDown = '#drop8';
  			$('#drop8').slideDown(speed);
		},
		function() {
			if (currentDropDown != "#drop8") {
				MM_swapImgRestore();				
				$(currentDropDown).slideUp(speed);
				currentDropDown = '';
			}
		}
	);

	$('.navTop').hover(
		function() {
			if (currentDropDown != "") {
				MM_swapImgRestore();
				$(currentDropDown).slideUp(speed);
			}			
			currentDropDown = '';
		},
		function() {
			// nothing on mouseout
		}
	);	
	
	$('#drop4').hover(
		function() {
  			// nothing on mouseover
		},
		function() {
  			$('#drop4').slideUp(speed);
			MM_swapImgRestore();			
			currentDropDown = '';			
		}
	);		

	$('#drop5').hover(
		function() {
  			// nothing on mouseover
		},
		function() {
  			$('#drop5').slideUp(speed);
			MM_swapImgRestore();						
			currentDropDown = '';			
		}
	);

	$('#drop6').hover(
		function() {
  			// nothing on mouseover
		},
		function() {
  			$('#drop6').slideUp(speed);
			MM_swapImgRestore();						
			currentDropDown = '';			
		}
	);
	$('#drop7').hover(
		function() {
  			// nothing on mouseover
		},
		function() {
  			$('#drop7').slideUp(speed);
			MM_swapImgRestore();						
			currentDropDown = '';			
		}
	);	
	$('#drop8').hover(
		function() {
  			// nothing on mouseover
		},
		function() {
  			$('#drop8').slideUp(speed);
			MM_swapImgRestore();						
			currentDropDown = '';			
		}
	);	
	
	MM_preloadImages('http://www.ihop.com/externalassets6/nav1_on.png','http://www.ihop.com/externalassets6/nav2_on.png','http://www.ihop.com/externalassets6/nav3_on.png','http://www.ihop.com/externalassets6/nav4_on.png','http://www.ihop.com/externalassets6/nav5_on.png','http://www.ihop.com/externalassets6/nav6_on.png','http://www.ihop.com/externalassets6/nav7_on.png','http://www.ihop.com/externalassets6/nav8_on.png');
	
});