function check_quant(quant,shape){
	if(emptyString.test(quant)){
		alert("Please provide quantity.");
		return false;
	}
	if(isNaN(quant)){
		alert("Quantity must be in numbers only.");
		return false;
	}
	if(shape=='Square End With Tassels' && quant<2){
		confirm("At least 2 pairs of tassels are required per Square End Runner. Please increase the quantity.");
		return false;
	}
	if(quant<1){
		alert("Tassels must be purchased, one pair of tassels must be purchased per runner.");
		return false;
	}
}
function change_shape(shape_index, img_name){
	if(shape_index==2){
		document[img_name].src = '../../images/pix/table_linen/Runners/Salim_Runner_Square_End.jpg';
		document[img_name].width="100";
		document[img_name].length="100";
		document.getElementById('buy_tassle').innerHTML='';
	}else if(shape_index==1){
		document[img_name].src = '../../images/pix/table_linen/Runners/Salim_Runner_With_Tassel.jpg';
		document[img_name].width="100";
		document[img_name].length="100";
		document.getElementById('buy_tassle').innerHTML='IMPORTANT:<br />Please note that tassels are NOT machine washable.';
	}else if(shape_index==0){
		document[img_name].src = '../../images/pix/table_linen/Runners/Salim_Runner_Without_Tassel.jpg';
		document[img_name].width='100';
		document[img_name].length='100';
		document.getElementById('buy_tassle').innerHTML='';
	}else if(shape_index==3){
		document[img_name].src = '../../images/pix/table_linen/Runners/Salim_Runner_Square_End_With_Tassel.jpg';
		document[img_name].width="100";
		document[img_name].length="100";
		document.getElementById('buy_tassle').innerHTML='IMPORTANT:<br />Please note that tassels are NOT machine washable.';
	}else{
		document[img_name].src = '../../images/pix/table_linen/Runners/test.jpg';
		document[img_name].width='100';
		document[img_name].length='100';
		document.getElementById('buy_tassle').innerHTML='';
	}	
}
function change_tcolour(colour_index,img_name){
	var colour_menu=document.getElementById('tcolour');
	document[img_name].width="80";
	document[img_name].length="30";
	document[img_name].border="1px";
	document[img_name].src ='../../images/pix/table_linen/Colour_Scans/Tassel_'+colour_menu.options[colour_index].value+'.jpg';
	document.getElementById('timg_path').value='../../images/pix/table_linen/Colour_Scans/Tassel_'+colour_menu.options[colour_index].value+'.jpg';
}
function validate(){
	var returnval=false;
	//var shape=parseInt(document.step2.shape.value);
	var objects = new Array();
	objects[0]=document.getElementById('length').value;
	objects[1]=document.getElementById('width').value;
	objects[2]=document.getElementById('quantity').value;
	
	for(var i=0;i<objects.length;i++){
		if(emptyString.test(objects[i])){
			alert("One or More Fields Are Empty");
			return false;
		}
		if(isNaN(objects[i])){
			alert("One or More Fields Need Correcting Before Submitting");
			return false;
		}
		if(objects[i]<1){
			alert("The length, width or quantity cannot equal zero!!");
			return false;
		}
	}

}
function addTasselPrice(rate){
	document.getElementsByName('thresholdprice1')[0].value=((document.getElementsByName('thresholdprice1')[0].value*1)+(rate*1)).toFixed(2);
	document.getElementsByName('thresholdprice2')[0].value=((document.getElementsByName('thresholdprice2')[0].value*1)+(rate*1)).toFixed(2);
}