function toggleBlock(expandBlock) {
	if ( document.getElementById(expandBlock) ) {
    var expand = document.getElementById(expandBlock);
    if(expand.style.display == 'block')
        expand.style.display = 'none';
    else
        expand.style.display = 'block';
  }
}

function toggleBlockControl(expandBlock, dispFlag) {
		if ( document.getElementById(expandBlock) ) {
	    var expand = document.getElementById(expandBlock);
	    
	    if( dispFlag == 1 || dispFlag == true ) {
	      expand.style.display = 'block';
	    } else 
	    	if( dispFlag == 0 || dispFlag == false ) {
	        expand.style.display = 'none';
	      }
	  }
}

function toggleBlockCollapse(expandBlock, collapseBlock) {
	if ( document.getElementById(expandBlock) && document.getElementById(collapseBlock)) {
	  var expand = document.getElementById(expandBlock);
	  var collapse = document.getElementById(collapseBlock);
	  
	  expand.style.display = 'block';
	 	collapse.style.display = 'none';
	}
}


function toggleCSSControl(cssName, dispFlag) {
    var layerClassName = getCSSRule( cssName );
    
    if( dispFlag == 1 || dispFlag == true ) {
      layerClassName.style.display = 'block';
    } else 
    	if( dispFlag == 0 || dispFlag == false ) {
        layerClassName.style.display = 'none';
      }
}

function toggleCSS(cssName) {
    var layerClassName = getCSSRule( cssName );
    
    if(layerClassName.style.display == 'block')
        layerClassName.style.display = 'none';
    else
        layerClassName.style.display = 'block';
}