<!-- Button Rollover Setup Script - Ignored by older browsers

// Set up variables

var romax     = 10;
var page_id = 0;
var page_level = 0;
var level_text= "";

butover = new Array(romax);
butout  = new Array(romax);
butdesc = new Array(romax);
buthome = new Array(romax);

// This fuction and the following window.onerror command
// surpresses the display of error messages
function handleError() {
	return true;
}
window.onerror = handleError;

// This function updates images and text for mouseover
function butOn(i) {
    txt="";
    if(i==1) txt="Home";
    if(i==2) txt="News";
    if(i==3) txt="Information";
    if(i==4) txt="Program";
    if(i==5) txt="Research";
    if(i==6) txt="People";
    if(i==7) txt="Majors";
    if(i==8) txt="Links";
    if(i==9) txt="Society of Physics Students";
    if(i==10) txt="Astronomy Club";

    // Updates window status at bottom of page
    window.status = "Department of Physics - " + txt;

    // Highlighted images for buttons and description
    if(document.images)
    {
        document.images["but"+i].src=butover[i].src;
//        document.images["desc"].src=butdesc[i].src;
    }
}

// This function updates images and text for mouseout
function butOff(i)
{
    // Un-highlighted images for buttons and description
    if(document.images)
    {
        document.images["but"+i].src=butout[i].src;
//        document.images["desc"].src=butdesc[page_id].src;
    }
    window.status = "";
}

// This function registers the page, loads and names images
function register(h,i)
{
    // Set page level depth and specific page ID
    page_level=h;
    page_id=i;

    if(document.images)
    {
        // Initialize image variables
        for(var n=0;n<=romax;n++)
        {
            butover[n]=new Image(100,29);
            butout[n]=new Image(100,29);
			buthome[n]=new Image(100,29);
//            butdesc[n]=new Image(206,16);
        }

        // Add ../ for each level of depth to image directory
		level_text="";
        for(var j = page_level; j>0; j--)
            level_text=level_text+"../";

        // Assign image source to variables
        for(var n=0;n<=romax;n++)
        {
		if(page_id==n){
			butover[n].src=level_text+"images/menu/but"+n+"_home.jpg";
            butout[n].src=level_text+"images/menu/but"+n+"_home.jpg";
 //         butdesc[n].src=level_text+"images/menu/but"+n+"_desc.jpg";
		}
		else{
            butover[n].src=level_text+"images/menu/but"+n+"_on.jpg";
            butout[n].src=level_text+"images/menu/but"+n+".jpg";
			buthome[n].src=level_text+"images/menu/but"+n+"_home.jpg";
 //           butdesc[n].src=level_text+"images/menu/but"+n+"_desc.jpg";
		}
        }
    }

    // Update description for specific page
 //   document.images["desc"].src=butdesc[page_id].src;

// Update current page button to fix IE bug

	for(var n=0;n<=romax;n++)
	{
		if(page_id == n)
		{
			butOn(n);
		}
	}
}	

function page_level(h,i)
{
    page_level=h;
    page_id=i;
			  
		level_text="";
	    // Add ../ for each level of depth to image directory
    	for(var j = page_level; j>0; j--)
    			level_text=level_text+"../";
}

// End of main rollover script -->