var steps = 60;
	            var timeout = 100;
	            var interval;
	            
	            
	            function stop(){
	              window.clearInterval(interval);
	            }
	            function left(){
	              var slideg_track = document.getElementById('slideg_track');
	              
	              if(slideg_track.style.marginLeft == ''){

                  slideg_track.style.marginLeft = (-1 * steps) + 'px';

                }else if (parseInt(slideg_track.style.marginLeft) > -1420){
                
	                slideg_track.style.marginLeft = (parseInt(slideg_track.style.marginLeft) - steps) + 'px';

                }
                
	            }
	            
	            function right(){
	               var slideg_track = document.getElementById('slideg_track');
	              
                if (slideg_track.style.marginLeft == ''){
                
                  slideg_track.style.marginLeft = '0px';
                  
                }
                if (parseInt(slideg_track.style.marginLeft) <= steps * -1){
                
                  slideg_track.style.marginLeft = (parseInt(slideg_track.style.marginLeft) + steps) + 'px';
                  
                }
                
	            }
	            


/**
	            var steps = 60;
	            var timeout = 100;
	            var maxPictures = 20;
	            var interval;
	            document.getElementById('slideg_submit').style.display = 'none';
	            function slidegLeft () {
	              element = document.getElementById('slideg_track');
	              if (element.style.marginLeft == '') {
	                element.style.marginLeft = (-1 * slidegStep) + 'px';
	              } else if (parseInt(element.style.marginLeft) > -1420) {
	                element.style.marginLeft = (parseInt(element.style.marginLeft) - slidegStep) + 'px';
	              }
	            }
	            function slidegRight () {
	              element = document.getElementById('slideg_track');
                if (element.style.marginLeft == '') {
                  element.style.marginLeft = '0px';
                }
                if (parseInt(element.style.marginLeft) <= slidegStep * -1) {
                  element.style.marginLeft = (parseInt(element.style.marginLeft) + slidegStep) + 'px';
                }
	            }
	            function slidegStop () {
	              window.clearInterval(slidegInterval);
	            }
	            
*/