////////////////////slideshow galery functions in evidence page////////////////////////////
// here we have the pictures array
slider= new Array();
slider[0]= new Array("Basic X-Plate Squat Position");	
slider[1]= new Array("X-Plate Lower Squat Position");	
slider[2]= new Array("X-Plate Spread Squat Position");	
slider[3]= new Array("X-Plate Hamstring Squeeze");
slider[4]= new Array("X-Plate Forward Lunge");
slider[5]= new Array("X-Plate Calf Raise");
slider[6]= new Array("X-Plate Front Press Position Shoulders");
slider[7]= new Array("X-Plate Front Press/Push Position");
slider[8]= new Array("X-Plate Tricep Squat Position");

var t;// this is the variable for the timer of the picture slider

function slideshow_items(){
	var mySelect= document.getElementById("select_userguide");	
	for (i= 0; i < slider.length; i++) {
		mySelect.options[mySelect.options.length]= new Option(slider[i][0], i);
	}
		mySelect.options[0].selected= mySelect.selectedIndex;

	change_item(mySelect);
	if (document.getElementById("radio_userguide_auto").checked) {
		//the automatic function
		t= setTimeout('automatic_change()',2000);
	}
}

function change_item(mySelect){
	var myDiv= document.getElementById("div_userguide");
	var picture_div=document.getElementById("div_picture_" + mySelect.selectedIndex); //div_picture<i>
	var text_div=document.getElementById("div_text_" + mySelect.selectedIndex); // div_text<i>
	picture_div.style.display="";
	text_div.style.display="";
	for (i= 0; i < slider.length; i++)
		if (i != mySelect.selectedIndex) {
			document.getElementById("div_picture_" + i).style.display= "none";
			document.getElementById("div_text_" + i).style.display= "none";
		}
}

function automatic_change(){
	var mySelect= document.getElementById("select_userguide");	
	if (mySelect.selectedIndex == slider.length-1){
		mySelect.selectedIndex= 0;
	} else {
		mySelect.selectedIndex++;	
	  }
	  change_item(mySelect);
	t= setTimeout('automatic_change()',2000);
}