/******************************************************************************/
/*   Filename: commonJScript.js                                               */
/*   Description: javascript code used in mentors.htm and students.htm        */
/*   Created on:  12/16/04                                                    */
/******************************************************************************/

	var curSlide = 0; // index of the array entry
	var prevSlide = 0;
	
	//Switch next element visible and previous hidden.
	function changeSlide ( change ) {
		curSlide += change;
				
		if ( curSlide < 0 ){
			curSlide = slides.length-1;
		}
		else{
			if ( curSlide >= slides.length ){
				curSlide = 0;
			}	
		}
		
		document.getElementById(slides[prevSlide]).style.visibility = 'hidden';
		document.getElementById(slides[curSlide]).style.visibility = 'visible';		
			
		prevSlide = curSlide;
		selectSlide[curSlide].selected = true;
	}
	
	function changeSlidebyList(slideChoice){
		curSlide = slideChoice-1;
		changeSlide(1);
	}