/////////////////////////show-hide function for evidence /////////////////////////////////
function showhide(n){
	var myImg=document.getElementById("img_"+n);
	var myExp=document.getElementById("exp_"+n);
	if ((myImg.src.substr(myImg.src.length-9))=="close.gif"){
		myImg.src="images/open.gif";
		myExp.style.display="";
	} 
	else{
		myImg.src="images/close.gif";
		myExp.style.display="none"	;
	}	
}

//contract all
function contract_all(){
	for (i=1;i<=12;i++){
		var myImg=document.getElementById("img_"+i);
		var myExp=document.getElementById("exp_"+i);
	 	myImg.src="images/close.gif";
		myExp.style.display="none";
	}
}

//expand all
function expand_all(){
	for (i=1;i<=12;i++){
		var myImg=document.getElementById("img_"+i);
		var myExp=document.getElementById("exp_"+i);
	 	myImg.src="images/open.gif";
		myExp.style.display="";
	}
}

////////////////////slideshow galery functions in evidence page////////////////////////////
// here we have the pictures array
slider= new Array();
slider[0]= new Array("Trim", "evidence_images/picture1.jpg");	
	
slider[1]= new Array("Abs", "evidence_images/picture3.jpg");	

slider[2]= new Array("Press", "evidence_images/picture2.jpg");
var t;// this is the variable for the timer of the picture slider

function slideshow_gallery(){
	var mySelect= document.getElementById("gallery_slide");	
	for (i= 0; i < slider.length; i++) {
		mySelect.options[mySelect.options.length]= new Option(slider[i][0], i);
	}
	change_photo(mySelect);
	if (document.getElementById("ma_auto").checked) {
		//the automatic function
		t= setTimeout('automatic_change()',3000);
	}
}

function change_photo(mySelect){
	var myDiv= document.getElementById("gallery_div");
	myDiv.innerHTML= "<img src='"+slider[mySelect.options[mySelect.selectedIndex].value][1]+"' border='0' width='300' alt=''/>";
}

function automatic_change(){
	var mySelect= document.getElementById("gallery_slide");	
	if (mySelect.selectedIndex == slider.length-1){
		mySelect.selectedIndex= 0;
	} else {
		mySelect.selectedIndex++;	
	  }
	  change_photo(mySelect);
	t= setTimeout('automatic_change()',3000);
}