function hide(){
    var paras =document.getElementsByTagName("li");
    for(var i=0; i< paras.length; i++){
        var title_text = paras[i].getAttribute("title");
        if(title_text == 'par1'|| title_text == 'par1a'|| title_text == 'par2' || title_text == 'par3'|| title_text == 'par4'|| title_text == 'par5' || title_text == 'par6'|| title_text == 'par7'|| title_text == 'par8' || title_text == 'par9'|| title_text == 'par10'|| title_text == 'par11'|| title_text == 'par12'|| title_text == 'par13'|| title_text == 'par14'|| title_text == 'par15')
        {
            paras[i].style.display ='none';
        }
    }        
}

function toggleDiv(divid, imageid){
    var test=document.getElementById(divid);
    if(test){
        if(test.style.display == 'none'){
            test.style.display = 'block';
            imagetoggle(imageid, false)
        }else{
        	test.style.display = 'none';
        	imagetoggle(imageid, true)
        }
	}
}